Instructions: Heat oven to 350F. Grease and flour 9x13 inch pan. Beat all ingredients together on low speed for 30 seconds. Beat on high 3 minutes. Pour 2/3s

(about 3 cups) into pan. Stir cocoa and baking soda into remaining batter.

Drop cocoa batter by generous tablespoons in mounds on top of peanut butter batter. Pull knife thoruhg in "s" shaped curves to marble. Bake 40-45 minutes or until toothpick test is clean or cake springs back when touched in the center. Cool. Frost with your favorite chocolate frosting, peanut butter frosting below, or even marble the two together.

Peanut Butter Buttercream Frosting: Mix sugar and peanut butter, stir in vanilla and milk. Beat until smooth. Frosts a 9x13 inch cake.

If you would like to email yourself the recipe for later use, or share the recipe with your friends or family, enter the email addresses below and this recipe will be emailed to you and others as well.