Fluffy, light, delicious, peanut buttery... what more can I say? This is the frosting I used on top of the chocolate cup cakes and it was a hit. My niece was literally eating it out of the bowl.
2 cups confectioner sugar
1 cup peanut butter
1/2 cup stick of butter room temp
4 T milk
Place the confectioner sugar, peanut butter and butter in a medium bowl. Add in the Milk 1 T at a time and use a hand mixer to blend in between each addition of milk. Add more milk as you go until it is the desired consistency, for a thicker frosting use 2T for something smoother use 3-4T.
I used a ziploc bag and cut a rather large corner off to pipe the frosting on in a nice dollop.