Homemade Brownie Bowl *You will need: Brownie batter, 2 muffin tins, Cooking spray. *Directions: 1.Follow the directions recipe to make the batter. 2.Spray cups of a muffin tin, and add brownie batter to each cup until they’re about two-thirds full. 3.Spray the second muffin tin and place on top of the first tin of brownies. 4.Place in the oven and bake, following your brownie recipe’s directions.