Brownies with a Surprise!

The surprise is Black Beans......yes, BEANS. And very good that you would never know! Adapted from 'Stealth Health - How To Sneak Nutrition Painlessly Into Your Diet'

• Ready In: 1 hr
• Yields: 30 good sized bars

Ingredients

• 1 (15 ounce) can  unseasoned black beans
• 4  ounces  unsweetened chocolate
• 1  tablespoon light butter
• 6  egg whites, divided
• 2  cups sugar
• 3  tablespoons all-purpose flour
• 2  tablespoons instant espresso coffee powder (found in most grocery stores, usually sold with instant coffee)
• 1⁄2 cup  chopped walnuts

Directions

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