Snickers Peanut Butter Brownie Ice Cream Cake Ingredients 1 box brownie mix, plus ingredients required on box 1/4 cup milk 8 oz cream cheese, softened 1/2 cup sugar 1 1/2 cups peanut butter 8 oz Cool Whip, thawed 1 20 oz bottle chocolate sundae syrup 1 20 oz bottle caramel sundae syrup 1 11.5 oz