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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


– 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.


  • 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


  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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Friday 24th of March 2023

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

Lisa johns

Sunday 5th of February 2023

Can you make chocolate covered peanut butter fudge With this ?

Michele Brosius

Sunday 5th of February 2023

Not sure what you are asking?


Thursday 29th of December 2022

I added Butterfinger bits to this recipe. Delicious!


Friday 23rd of December 2022

Can I use sugar free frosting?

Michele Brosius

Wednesday 28th of December 2022

That should work! Let me know how it goes. Thanks

Mary Sue

Wednesday 21st of December 2022

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.

Michele Brosius

Wednesday 21st of December 2022

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!

This recipe or post is in no way authorized or associated with the Weight Watchers or myWW Program.

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