2 Ingredient Peanut Butter Fudge

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This 2 ingredient peanut butter fudge recipe couldn’t be any easier to make! As the name implies, it only requires two ingredients to make and only takes 10 minutes of prep to put together!

If you’re a fan of peanut butter, you’re absolutely going to love this peanut butter and frosting fudge recipe. It’s not only going to be a crowd pleaser with your friends and family, but would also be a great option for any parties, and it’s even a great option to make for a bake sale!

2 Ingredient Peanut Butter Fudge stacked

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Why you’ll love this recipe

This recipe only requires 10 minutes of prep from you, then it takes an hour to solidify in the fridge before it’s ready to indulge in! Plus the two ingredients needed are pantry staples so you may already have them in your kitchen!

Ingredients for this recipe

You may be wondering what is needed for this recipe since it only uses two ingredients. 

Peanut Butter: The entire taste of this recipe is focused on the peanut butter.

Frosting: Add some sweetness to the fudge with some frosting – we suggest vanilla flavor!

2 Ingredient Peanut Butter Fudge ingredients labeled

Substitutions

– Feel free to use another butter of your choice such as almond butter if you would prefer.
– Choose any flavor of icing to mix with this recipe. Chocolate could be a tasty option!

Equipment needed for this recipe

This peanut butter and icing fudge recipe doesn’t need much in terms of equipment which means minimal clean-up time which is a huge bonus! You’ll need a microwave-safe bowl to melt the ingredients together. Stir them together with something like a silicone spatula, then add into a 9×9 glass baking pan to let it set!

How to make 2-ingredient peanut butter fudge

2 Ingredient Peanut Butter Fudge ingredients

Step One: Empty both the peanut butter and frosting into a microwave-safe container.

2 Ingredient Peanut Butter Fudge mixed

Step Three: Then microwave on high for 1 min and pour the mixture into a glass baking pan.

2 Ingredient Peanut Butter Fudge being mixed

Step Two: Microwave on high for 1 min. Remove from microwave and stir.

2 Ingredient Peanut Butter Fudge held up

Step Four: Smooth out, then refrigerate until hard.

What other peanut butter recipes should you try?

Peanut butter is such a popular flavor for baking, you’ll likely want to experiment with other fun peanut butter recipes! You may enjoy this Weight Watchers Peanut Butter Whips recipe, or if you’re craving some cookies, you could always try out this Peanut Butter Blossoms recipe. For an energizing treat, you could always make this Chocolate Peanut Butter Energy Balls recipe, or get really creative with this Chocolate Peanut Butter Dessert Pizza recipe!

Common Questions

How long do I let fudge sit?

This microwave peanut butter fudge recipe just requires about one hour in the fridge to harden before you serve it. 

Can I add toppings to this 2 ingredient peanut butter fudge recipe?

You certainly could! For example, some sprinkles could add a really fun pop of color! 

Can I make this fudge with any frosting? 

I avoid making my peanut butter fudge recipe with either cream cheese or whipped frostings. The fudge just doesn’t taste the same with those kinds of canned icing.

You can pretty much use any brand of frosting though so feel free to use whatever one you like or have on hand!

How do I double this easy PB fudge recipe? 

This recipe is super simple. It’s a 1-to-1 ratio of peanut butter and icing. So however much icing you want to use, just use that much peanut butter to balance it out.

If you want to simply double the recipe you’ll need to use 32 oz of peanut butter and 32 oz of icing. 

2 Ingredient peanut butter fudge only takes 2 minutes to make.

Storage suggestions

The best way to keep fudge fresh for as long as possible is to keep it in an airtight container at room temperature. This will help to prevent the fudge from drying out before you’re finished with it.

Printable Easy Peanut Butter Fudge Recipe:

Featured image showing the finished 2 ingredient peanut butter fudge on a plate ready to serve.

2 Ingredient Peanut Butter Fudge

Yield: 24 Servings
Prep Time: 10 minutes
Additional Time: 1 hour
Total Time: 1 hour 10 minutes

2 Ingredient Peanut Butter Fudge is a long time favorite in our house! Over the years I have made this fudge for bake sales, family gatherings and just to have around the house for a special treat.

Ingredients

  • 16 oz Jar of any brand peanut butter
  • 16 oz Tub ready made frosting any flavor, I like the plain vanilla,the best but avoid cream cheese and whipped they don't get as firm

Instructions

  1. Empty both the peanut butter and frosting into a microwave safe container.
  2. Microwave on high for 1 min. Remove from microwave and stir.
  3. Then microwave on high for 1 min and pour mixture into glass banking pan. (9 x 9, works best)
  4. Smooth out, then refrigerate until hard

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Nutrition Information
Yield 25
Amount Per Serving Calories 190Saturated Fat 2gSodium 121mgCarbohydrates 16gFiber 1gSugar 13gProtein 4g

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186 Comments

  1. I love this recipe! I make it all the time! I have found that the fudge has a much silkier texture if you melt the peanut butter and icing separately, and then mix the two together. I line my glass pan with foil and then just pop out the whole thing to cut into pieces. Thanks for sharing!

        1. I made this with peter pan creamy peanut butter,and pislbury chocolate icing,8×8 glass pyrex pan with sealed lid. Refrigerated overnight,while it is VERY yummy,i cant get it to be hard enough to come put in nice pieces. What did i do wrong? I followed your video to a T. Thanks!

          1. If you microwave too long it will not set correctly. Was it the whipped icing? That will make a difference. Vanilla is my stand by. Sorry it didn’t set. The only thing I can figure out is the frosting might have changed, since companies always update it. Sounds like you have a good ice cream topping if it didn’t get hard. Thanks

          2. A friend of mine turned me on to this fudge but she uses (And I also) white chocolate bark instead and it is so good and comes out perfect. I haven’t made it for awhile so I don’t remember the ratios but it’s prepared the same as this one. But it comes out perfect.

          1. Mine came out a little thin, so I added milk chocolate morsels. They gave it a nice consistency plus added the chocolate flavor!

      1. This is exactly what I was thinking when I was reading this recipe. Did you try it using Nutella, and if so how was it?

          1. I just whipped this up and subbed out 1/3 of the peanut butter with Nutella.. Smells and looks divine, it’s in the fridge now- I can’t wait to try it!

      2. I’m going to try this. I mix my peanut butter and frosting together and sofen it in the microwave. Mix it good. Put in the fridge until it gets firm. Roll them into balls and dunk them is almond bark chocolate. That’s takes a minute I’m giving this a try.

    1. How many oz. of frosting do you use? It seems the tubs are smaller than they used to be and it may not be enough for that much peanut butter.

        1. You’re not putting the foil lined pan in the microwave. You’re putting the bowl with the frosting and peanut butter back in the microwave a second time before putting it in the foil lined pan

    2. @Peggy, Use the same amount of peanut butter as your frosting. If the tub is 16 ounces, use 16 ounces of pb. If the frosting is 14 ounces, use 14 ounces of pb…….etc.

    3. @Allie, I used your advice on heating separately and it did turn out better. Thanks for sharing

    4. A little late to the show, but Peter Pan has a bit more oil than other peanut butters, probably why it makes a softer fudge. Try a different brand or use a bit less of it. I’ve used Kroger brand and it worked well.

  2. Just made this with chocolate icing & peanut butter….plus a few peanut butter chips (about a handful – seems to give it a bit firmer texture). The fudge on the spoon was Good=like a Reeses cup. waiting for it to harden & thinking I might be sorry I made this…it wont last long….my family loves Reeses cups!

    1. I just made some with the chocolate frosting too. Sure looks good. Something easy and fast !!

    1. I’ve always heard that organic peanut butter had a lot more oils than store bought this why it’s not best to use unless u add powder sugar

  3. Hey i love your blog! The thing is… I don’t have a microwave (I know it sounds crazy) but, could I just heat the peanut butter and vanilla icing up on the stove top in a sauce pan?

      1. I WOULD HEAT IN A DOUBLE BOILER SO IT DOESN’T BURN………..JUST MY THOUGHTS…………..

    1. i’d be careful with direct heat, maybe try putting the ingredients in a bowl on top of a sauce pan of boiling water – like you would for melting chocolate. (Don’t let the water touch the bowl though)

  4. i sure wish I had come across your recipe yesterday… 🙁 I saw the same recipe on facebook and thought it would be something quick and easy I could do while the rest of the food was cooking… Only problem is, there was no mention of “not” using whipped or sour cream frosting…. Guess what I grabbed because there was no vanilla frosting left on the shelf? Sigh!!

    1. Could try to add some melted chocolate pieces into the mixture. Use white or peanut butter chips if making the peanut butter fudge. Chocolate chips for peanut butter and chocolate. half to 3/4 cup of chips could help set the fudge…. You would have to experiment.

      1. Hi I I’m going to try it with Sugar free frosting and peanut butter. I will let you know how it turns out I love to bake. Thank you for sharing this recipe.

      1. the only suggestion i have about using Nutella is to microwave it for less time. when we took it out of the microwave after the second minute there was an oily liquid separating. it took lots of stirring to get it mixed back it, not certain we entirely succeeded. it is still delicious.

      1. Yes I did use the sugar free icing and it works good too. I try to find the lowest grams of sugar in peanut butter. but I also used almond butter too. I also tried a bag of sugar free chocolate bits in it too. Excellent.

  5. Also, how well does this keep at room temperature? StillTasty.com suggests it should be kept refrigerated because of the frosting. I’m thinking about giving it as gifts this Christmas, but I’m not sure what the best way to store it, transport it, and give it is. If it melts too easily, I’m thinking about giving it frozen to keep it from spoiling during Christmas dinner. Does it freeze well?

  6. This is a great and very easy fudge. However, I don’t understand about not using cream cheese icing.
    I made this 2 times at Christmas to give for gifts and that is what I used. VERY GOOD

  7. I just made this with caramel frosting and the peanut butter…in the fridge now… Looking forward to tasting it!!
    May be a silly question, but do you put Plastic Wrap just to lay on top of the fudge?

    1. I usually have mine in plastic or glass dish that has a seal or cover. Plastic wrap would be a great idea. I can’t wait to hear how it tastes. Thanks for stopping by!

  8. I wanted to make just a little bit of this so I used a 1/2 cup of each. It turned out great!

  9. Peanut Butter happens to be an obsession of mine, I really can’t get enough of it. I love fudge, but I have never had Peanut Butter Fudge before. This is something I just gotta try! 🙂

  10. I just made this tonight and it is unbelievably good. I used natural and smooth peanut butter and buttercream frosting. I was concerned that the oil sitting on top of the peanut butter would prevent the fudge from setting so I poured it off (it amounted to less than a tablespoon). I was still concerned that it might not set, as this type is quite runny even at room temperature, so I added a tablespoon of unsalted butter to the peanut butter before heating it up and then stirred it thoroughly into it. This brand of natural peanut butter is also a bit grainy but once mixed and set it added a nice contrasting texture to the overall creaminess of the fudge. By far the best that I have ever made and I have made peanut butter fudge successfully with more complicated methods but don’t think I will bother after trying this one. Too easy and too good.

      1. I am thinking of making this with half Peanut Butter & Co. White Chocolate Wonderful peanut butter and half Dark Chocolate Dreams peanut butter along with frosting (undecided on the flavor, not sure which would taste best with the combination of the two flavors ). What do you think Michelle?

  11. I just encountered this recipe and made it with Peter Pan and Betty Crocker Triple Chocolate Fudge frosting. then I had an epiphany. If this works with peanut butter, why stop at just the most common nut butter. How would this turn out with cashew butter, or almond butter, or… wait for it… pistachio butter? I think this requires extensive research.

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  13. I just made this with chocolate icing. I tried it before it fully hardened and I it tasted more like icing than peanut butter and chocolate. So microwaved more peanut butter and put it as a top layer.
    . If it doesn’t turn out, it’s because I modified the recipe and will try the actual recipe. 🙂

    1. Let me know how it turns out. I am not a fan of the chocolate icing. The flavor is just off for me. The white & peanut butter will always be my favorite. Thanks

  14. I tried to make this fudge with sugar free frosting and peanut butter. It did not ever firm up. I guess it’s the sugar free frosting.

  15. Wow. I’m really in trouble now. I mean seriously, 2 ingredients? There’s no reason NOT to have this in my house at all times! Totally loving this!

  16. My roommate made this with a coconut pecan frosting. Great taste but way too soft when set. It wasn’t whipped so not sure what went wrong. Will try other flavors.

    1. I tried it with the coconut pecan icing too and it was a fail! I think there is a lot more oil in this frosting, so it won’t set. The peanut butter and vanilla is always a win. Thanks for stopping by!

  17. Does the fudge come out easily or do ou recommend using butter in bottom of container???

  18. If you choose the sugar free Pillsbury frosting, this is 16 servings at 9 SmartPoints per serving

  19. Will this set if not refrigerated? I don’t care for cold fudge! Thanks!
    Don’t want to rate it. Haven’t made it. So, if I must, I’ll give it one star.

  20. Going to try the different mixtures . We are having a bake sale at our church hope they sale.

  21. Hi,love all the great recipes you share . I was wondering if Almond or Cashew Butter can be substituted for Peanut Butter as my new daughter in law has a peanut/Peanut butter allergy. Does the amounts change for the recipe? Thanks for any help with this. I would hate to lose my DIL so soon after getting one I really love to bits.

    1. I have not tried it with the sugar free icing. I may pick some up if I can find it. Let me know if you try it. I looked back thru comments and one person said it was great with SF icing and another said it was horrible. THANKS

  22. I don’t really understand this line in the instructions: “Then microwave on high for 1 min on high and our mixture into glass pan”. Can you explain a little better?

  23. This 2 ingredient peanut butter recipe is the best. Easy, quick and fantastic all in one. I have been trying to make PB fudge for years with some success some not. But this is my new recipe. Try it.

  24. Hello, Thank you, thank you, thank you for this recipe! I make it the old fashioned way and I saw your recipe yesterday, tried it and I will NEVER look back! It is the easiest and yummiest. Thank you again!

  25. LOVE this EASY peezy fudge! I drizzle chocolate over the top and oh YUM! Everyone comments how creamy it is and it sets up amazingly! Thank you for the EXTRA weight! LOL

  26. Omg this fudge is awesome!! I just made it for the 2nd time and it’s so easy!! I totally agree with another reviewer who said it tastes like the inside of a Reese’s peanut butter cup!!

  27. The easiest and best peanut butter fudge I have ever made. So smooth and creamy. Very easy and simple to make. Now my favorite peanut butter fudge recipe. Thank you so much for sharing this wonderful recipe.

  28. I would like to try this, wondering if it would be ideal for school lunch boxes too. I live in Africa, and I don’t know if we have ready-made vanilla frosting in the shops. Haven’t seen. Any suggestion as an alternative. I was thinking Nestle caramel. I’d like to give that a try today.

  29. Very smooth and easy to make but I didn’t think it set-up like a traditional fudge does. I don’t think it would hold up outside of the refrigerator (like on a platter).

  30. I hate canned cream cheese frosting. I used per your recipe the reg vanilla. Then threw in a half brick of cream cheese, melted it up and worked really well. Sat it out after it hardened was GONE in an hour. I asked who who killed it, I’m assuming it was the son I never had, His name is notme. He tears up alot of stuff at my house. Thanks for a great easy recipe.

  31. This sounds wonderful. I’ve lost 90 pounds on WW, but this sounds to dangerous to have around. Might make for holiday give away though. Thanks for the post.

  32. I made this fudge and it’s delicious. I was wondering how long does it last in the fridge. I know it’s just frosting and peanut butter but is there a shelf life.

  33. Has any tried putting chocolate chips on the top of fudge to let melt when done microwaving it?

    1. I have never added the chocolate on top, but I assume it would work after your fudge has hardened a bit. Melted chocolate on top may just sink into the mix. Let me know if it works. Thanks

  34. I ran into some peanut butter morsels mixed with chocolate morsels the other day. I thought I’d try them in my 3 ingredient quick fudge recipe. I bought 2 bags because I needed 3 cups of morsels and 1 can of sweetened condensed milk. I put the 3 cups of peanut butter and chocolate morsels in a microwaveable bowl and then put the can of sweetened condensed milk on the morsels. I did give it a brief stir to help get the milk divided more evenly on the morsels. Then I microwaved the mixture 15 seconds and took out and stirred to mix better. Then I put the mixture back into the microwave for 15 seconds and removed it and completely got it mixed thst time. Then I putvit back into the microwave for another 15 seconds to get it melted enough to pour into 9 by 9 inch pan lined with foil. Set in refrigerator overnight and cut into squares the next morning. Tasted more like reese’s peanut butter cups.
    Microwaving the chocolate morsels only 15 seconds at a time will help to keep from getting dry and hard pieces of chocolate

  35. I made a double batch, it turned out perfect. So easy to make. Thank you for the recipe. Do you think if I added some peanut butter whiskey or cinnamon whiskey, it would turn out?

  36. I wish this page had a link to click that took me directly to the recipe instead of me having to scroll for a year just to find it. Especially when I discovered I tried this recipe before and it turned out like garbage.

  37. This doesn’t make fudge. I tried it but still had to run to the store and grab a bag of white chocolate chips in order to get it to ‘set up’ Anyone who had this same problem this one added ingredient will fix the problem completely. 11 ounce bag of Hershey white chocolate morsels and done!

  38. I made mine with peanut butter and choc. fudge frosting, tasted just like a reeses ,

  39. Well I just made this with the vanilla frosting and the peanut butter. I have to say I’m very disappointed in the taste. I’ve made this before but I used the cream cheese frosting and it’s always been a hit and the flavor was great. But I was reading this recipe and I saw where it says “avoid using cream cheese frosting”. So I thought I’d give the vanilla a try. Well, never again.They have absolutely no taste , I’m afraid that there won’t be anyone eating these but me. Other than that they turned out great texture wise. Sorry for the negative comment.

    1. Sorry to hear this. I feel the same way about the cream cheese icing.I think it tastes horrible. I have never had anyone that i have served complain about the taste. It should taste more like peanut butter than anything. Thanks!

  40. The absolute best and easiest fudge recipe. I made 6 batches to hand out ar xmas and I’ve used 3 different types of frostings: chocolate, vanilla and butter cream and they all turned out great. Today I used chunky PB, vanilla frosting and whipped in some chocolate chips. Yum

  41. Has anyone tried this using peanut butter & butterscotch frosting? Just wondering if these two flavors mix well together?

  42. My daughter made this fudge but she used strawberry icing and the peanutbutter. It is amazing it tastes like a peanutbutter an strawberry sandwich. Just a perfect switch from regular peanutbutter fudge..

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