Chocolate Peanut Butter Cupcakes

1 box Devil's Food Cake Mix
Buttermilk
Eggs
Oil
1 1/2 cups creamy Peanut Butter
2 sticks butter, room temp
2 cups powdered sugar
2 tsp. vanilla
1/2 cup heavy cream
3/4 cup semisweet choc chips
Mini Reese's Peanut Butter Cups

Cupcakes
Make cake mix according to package directions except substitute buttermilk for the water. Bake as directed.
Ganache
Heat heavy cream in a saucepan just until hot and starting to bubble, pour choc chips in and let sit for 15 minutes. Stir until smooth and then cool to room temp.
Frosting
Beat butter and peanut butter until smooth, add vanilla and powdered sugar. Beat until smooth and creamy.
Assembly
After cupcakes are cooled dip into the ganache letting the excess drip off. Cool in the fridge to set. Pipe on the frosting and top with mini Reese's Cups.