- 1 (19.8 ounce) package Brownie Mix
- 2 Egg Whites
- 1 cup packed Brown Sugar
- 1 tsp Vanilla Extract
- ½ cup Walnuts (chopped)
- Preheat oven to 350 degrees F.
- Prepare the brownie batter as directed on the package.
- Pour into a buttered baking pan.
- Beat egg whites until foamy.
- Add brown sugar and whisk until stiff and glossy.
- Fold in vanilla and nuts gently.
- Spread over the brownie batter.
- Bake for 40 to 45 minutes.
- Cut into squares and serve warm.