Cake:
1 box chocolate cake mix
1 cup water
3 eggs
½ cup creamy or crunchy peanut butter
⅓ cup softened butter or margarine
Peanut Butter Glaze:
¼ cup creamy or crunchy peanut butter
1 can vanilla or cream cheese frosting OR ¼ cup milk + 1 cup powdered sugar
Optional Topping:
¼ cup fudge sauce
Mini peanut butter cups, halved