This Nutter Butter Cake is simpler than it looks because it starts with a boxed cake mix. You'll love the rich peanut butter frosting that tastes like the cream inside Nutter Butters.
Preheat the oven to 350ºF. Grease and flour 2 9" round cake pans.
In a large mixing bowl, beat cake mix, water, peanut butter, oil and eggs with electric mixer on medium speed about 2 minutes. Pour the batter evenly between the two greased and floured pans.
Bake the cake for 30 minutes or until a toothpick inserted in the center comes out clean. Cool for 10 minutes, then invert the round cakes onto a cooling rack to cool completely.
Make the frosting:
In a mixing bowl, blend together peanut butter, powdered sugar, butter, and milk with an electric mixer on medium speed for about 2-3 minutes or until light and fluffy.
Place one cake on a plate and frost the top. Place the other cake on top of that and frost the sides and top. Decorate as desired with piping rosettes and using Nutter Butter cookies, large or bite-sized.
Notes
I use Wilton 1M or 2D to pipe swirls on cake tops.If for some reason the frosting is too thick, add a tablespoon of heavy cream at a time until it is the perfect spreading consistency.Store in an airtight container at room temperature for up to 3 days. Store any leftovers in the freezer for up to 8 weeks.Refer to the article above for more tips and tricks.The calories shown are based on the cake being cut into 15 pieces, with 1 serving being 1 slice of cake. Since different brands of ingredients have different nutritional information, the calories shown are just an estimate. **We are not dietitians and recommend you seek a nutritionist for exact nutritional information. **