Categories: Chocolate, Cakes/choc. 
      Yield: 30 servings 
  
      2 c  Sugar                               1 c  Buttermilk* 
      1    Stick margarine [see PS at      2 1/2 c  Flour 
           -end]                           1 1/2 ts Vanilla 
      6 tb Cocoa                             1/2 c  Hot water 
      3    Eggs, separated                 1 1/2 ts Baking soda 
  
  * (1 cup milk+1 tsp vinegar mixed together may be substituted here) 
   
  1- Blend sugar and margarine; add cocoa and egg yolks. 2- Alternately add 
  buttermilk and flour. 3- Beat egg whites, add vanilla and blend into 
  mixture. 4 a Pour into a greased and floured 13x9-inch baking pan -OR- 4 b 
  Pour into two 8" or 9" diamter cake pans lined with wax paper. 
   
  SURPRISE FILLING 8 oz (1 pckg) cream cheese, softened 0.5 c sugar 1 egg 1 
  dash salt 0.5 c semi-sweet chocolate chips 
   
  1- Blend cream cheese, sugar, egg and salt. 2- Stir in chocolate chips. 3- 
  Drop by teaspoonfuls over cake batter in pan. 4- Bake at 350 F for 30-40 
  minutes. Cake is done when it leaves side of the pan. 
   
  To make cupcakes, fill paper baking cups 2/3 full with batter,  then drop 1 
  teaspoon Surprise Filling on top of each.  Bake at 350 F  for 25-30 
  minutes.  Makes 30-32 cupcakes.