Peanut Butter Bars with Ganache Frosting

I found this recipe here and just knew I had to make them. I made them for our 4th of July party and they were fantastic! If you love peanut butter and chocolate, these are a must make now!

Peanut Butter Bars with Ganache Frosting

For the Crust:
1 box Devils Food Cake Mix
1/3 cup butter
1 egg

For the Peanut Butter layer:
3/4 c. butter
3/4 cup peanut butter
1 teaspoon vanilla
1 pound powdered sugar (about 3 cups)
2 tablespoons milk
3/4 cup honey-roasted peanuts, chopped (optional)

For the Ganache:
1/2 cup whipping cream
1 cup semi-sweet chocolate chips
1 cup milk chocolate chips

1) In a large bowl, mix togehter the cake mix, egg, and butter. Press into the bottom of a 9×13 inch pan. Bake in an oven preheated to 350 degrees for 12 minutes. Remove from oven and allow to cool completely.

2)In a large bowl, mix together all of the ingredients for the peanut butter filling until it is thick and smooth. Spread onto cooled chocolate crust, patting the top down evenly to prepare for the ganache frosting.

3) Pour the chocolate chips and whipping cream into a microwave-safe bowl. Microwave for about 60 seconds, then whisk. Microwave again for 30 seconds or so, then whisk again, until the mixture creates a smooth, thick chocolate sauce. Spread chocolate on top of peanut butter frosting. Allow all layers to set and cool completely before serving, about 2-3 hours. Cut into squares to serve.