Preheat oven to 350-degrees. Butter 13x9" glass baking dish. Combine cake mix, peanut butter, water & eggs in large bowl. Stir until dough forms. Press dough into prepared dish. Bake 20 mins or until puffed & set. Cool cake for 20 mins. Melt chocolate morsels in microwave on medium-low for about 2 mins or until just melted and smooth, stirring every 30 seconds. Spread melted chocolate over cake base. Sprinkle with cereal. Melt Butterscotch morsels in microwave on low for 30 seconds or until just melted & smooth. Drizzle over chocolate cereal layer. Using tip of knife, swirl toppings together to create marbled effect. Refrigerate for 30 mins or until set. Cut into squares. Makes 32 small squares.
Not a NESTLÉ®-tested recipe.