Ingredients:
Box of yellow cake mix (see note)
Can of frosting
3 eggs
1/3 cup of no sugar added applesauce
1 cup of water
18 mini Reese's Peanut Butter cups
Note: you can use any yellow, white or chocolate cake for this recipe. I like the classic yellow cake. Of course you always use your scratch cake recipe instead of a box recipe. I also substituted the applesauce for the oil in the recipe so they are a bit lower in fat.
Mix the cake mix with the water, eggs and applesauce to make the cake batter. Then put cupcake liners into a muffin pan and fill evenly with the batter. Next place one mini Reese's cup into each cupcake as shown.

Note: For a mess free and easy way to get an equal amount of batter into each liner use an ice cream scoop.
Bake per package instructions. Allow to cool and frost the cupcakes with frosting.
Makes about 18 cupcakes. Enjoy.