Peanut Butter Marble Cake

This cake has a very light peanut butter flavor to it, along with the chocolate. Nothing better than peanut butter and chocolate! Cake: 1 pkg marble cake mix 3 eggs 1/2 cup oil 1 cup water 1/3 cup peanut butter Icing: 1 can fudge frosting 2 TBS peanut butter In large bowl blend cake ingredients, then beat 2 minutes at high speed. Pour 3/4 of batter into pan. Add marble pouch and t TBS water to remaining batter; blend. Pour chocolate batter on top of yellow batter in pan. Marble layers with knife, turning pan while doing so. Bake at 350 degrees for 35 minutes. Cool completely. Blend frosting with peanut butter. Frost cooled cake. Sprinkle with chopped peanuts, if desired.