Mmmm! 1 scoop brownie batter,1 scoop cookie dough in a muffin tin. Mix according to directions on each and bake according to directions on box. Don't over bake as brownie will become hard. You could also add mini peanut butter cup or Rollo between layers.
It's the sugar that makes these cookies irresistible. Vary the flavor by using the same amount of other types of sugar, including light or dark brown sugar, or maple sugar. Melt In Your Mouth Sugar Cookies