For 4 Person(s)
Preheat oven to 350°F (175◦C). Lightly spray canola oil into a 13 x 9 x 2 in (33 x 23 x 5 cm) pan.
Sift flour, salt and baking powder together into a bowl.
In a food processor, combine cocoa, margarine, sugar, black bean, eggs and vanilla. Blend until well mixed with little or no bean texture left.
Stir wet mixture into dry ingredients until moist. Pour batter into pan.
Bake for 30 minutes or until a knife comes out cleanly. Cool and cut into 32 small pieces.
Yield: 32 squares
Serving Size: 1 square