How to Make Peanut Butter Frosting?

Peanut Butter frosting is so good, especially when its on a chocolate cake! Here is how you make peanut butter frosting. Mix 1/2 butter with 1 cup peanut butter, then gradually add in 2 cups of powdered sugar bit by bit. When it gets hard to mix gradually layer in 3 tablespoons of milk. All done Peanut Butter Frosting!