Move an oven rack into the middle of the oven. Preheat oven to 350 degrees F.
Grease 24 muffin cups.
Line a work surface with waxed paper
Spoon 1 teaspoon melted butter into the bottom of each muffin cup.
Spoon 1 tablespoon brown sugar in each muffin cup.
Press a maraschino cherry into the center of the brown sugar in each muffin cup.
Spoon a heaping tablespoon of crushed pineapple over the cherry and compact it with the back of a spoon into an
even layer.
Mix yellow cake mix, eggs, pineapple juice and vegetable oil in a large bowl with an electric mixer on low speed
until moistened, about 30 seconds. Turn mixer speed to medium and mix for 2 minutes.
Pour cake batter into the muffin cup, filling them to the top; do not overfill.
Bake in the preheated oven until a toothpick inserted into the center of a cupcake comes out clean, about 20
minutes.
Allow cupcakes to cool at least 5 minutes before inverting muffin cups onto the wax paper to release. Serve with
pineapple and cherry sides up.