Categories: Cakes, Cookies 
      Yield: 16 servings 
  
      1 c  Flour, all purpose                1/3 c  Coca, unsweetened 
    1/4 c  Nonfat dry milk powder            1/4 ts Baking soda 
    1/4 ts Salt                                1 ea Large very ripe banana 
      1 c  Sugar                               2 ea Large egg whites 
    1/4 c  Buttermilk                          1 ts Vanilla 
  
  Preheat oven 350F. Coat 9 in. square baking pan with vegetable cooking 
  spray.  Combine flour, cocoa, milk powder, baking soda and salt in bowl. 
  Puree banana, sugar, egg whites, buttermilk and vanilla in food processor 
  until smooth.  Add dry ingredients and pulse just until blended. Pour into 
  prepared pan.  Bake 25 minutes or until toothpick comes out clean. Cut into 
  2 in. squares.