Source: Stealth Health: How To Sneak Nutrition Painlessly Into Your Diet, ©1998 by Evelyn Tribole, MS, RD

Pureed black beans are the secret ingredient to these rich, chewy brownies.

Servings

1 cooking spray
15 oz Beans, black, unsalted, fat free, canned , rinsed
4 oz Baking Chocolate, unsweetened, square
1 tbsp Butter, light, salted
6 egg whites , divided
2 cup sugar
3 tbsp white all purpose flour
2 tbsp instant espresso powder
0.5 cup chopped walnuts

1 Preheat the oven to 350 degrees F, and spray a 9x13-inch pan with nonstick vegetable spray.
2 Place the beans in a colander, and rinse thoroughly under running water to remove "slime"; set aside to drain.
3 Place the chocolate and light butter in a small microwavable bowl. Microwave for 60 to 90 seconds, stirring every 30 seconds until smooth.
4 In a food processor blender, add the drained beans and 2 egg whites. Blend or process until smooth.
5 In a large bowl, combine the bean purée, sugar, flour, espresso powder, and remaining egg whites. With an electric mixer, beat until well combined. Mix in the melted chocolate.
6 Pour the brownie mixture into prepared pan. Sprinkle the walnuts on top of the brownie batter, and bake for 30 to 35 minutes until the brownie pulls away from the sides of the pan.
7 Cool completely in the pan before cutting into bars -- rows of six by five. Makes 30 (nice-size) brownies.