Title: Cocoa brownie cookie bars
 Categories: Desserts, Chocolate, Low-fat
      Yield: 2 Dozen
 
      4    Egg whites
    1/3 c  Oil
    1/4 c  Nonfat yogurt
      1 ts Vanilla
  1 1/3 c  Sugar
    1/2 c  Cocoa powder
  1 1/4 c  Flour
    1/4 ts Salt

MMMMM--------------------------TOPPING-------------------------------
      1 tb Confectioners sugar
 
  Heat oven to 350 degrees.  Oil bottom of 9-inch square pan. Place egg
  whites in a large bowl.  Beat until slightly frothy. Add oil, yogurt
  and vanilla, mix well. Add sugar and cocoa, mix well. Add flour and
  salt. Mix until blended.  Pour into pan.  Bake at 360 degrees for
  26-28 minutes. Avoid over baking.  Dust with confectioners sugar.