- 1 box brownie mix, prepared according to directions
- 1 egg (in addition to any eggs the brownie mix requires)
- Cooking spray
Preheat a waffle iron. Mix the egg into the prepared brownie batter. Place about 2 tablespoons to 1/4 cup brownie batter into the waffle iron, depending on the waffle iron instructions and capacity. Cook until done, about 5 minutes.