Bake brownies according to package (we like King Arthur but Dunkin Hines is good too) Just when you take then out of the oven (while still hot) top with 3 cups mini marshmellows, 1 cup nuts ( peanuts, cashew or walnuts chopped) & 1 1/2 cups mini chocolate chips..put back in the hot oven for 5 minutes to melt… Cool & slice