Step #1 Preheat oven to 350°F Place 2 sheets of nonstick aluminum foil wrap in bottom & up sides of a 9- X 9-inch baking pan (or place regular foil wrap in pan & coat it with cooking spray).
Step #2 Sift flour, baking powder, salt & cocoa together in a medium bowl.
Step #3 Cream granulated sugar & cream cheese together In a large-ish bowl until light & fluffy.
Step #4 Add egg yolks, one at a time, beating until fully mixd; mix in vanilla.
Step #5 Slowly mix flour mixture with cream cheese mixture.
Step #6 Whisk egg whites until soft peaks begin to form; fold egg whites into brownie mix & then spread brownie batter evenly in prepared pan.
Step #7 Combine cereal, powdered sugar & melted butter in a small bowl; sprinkle on top of brownies.
Step #8 Place pan on middle rack in oven & bake just until center sets, about 25 to 30 mins.