English toffee refrigerator cake

MMMMM----- Recipe via Meal-Master (tm) v8.01
  
       Title: English Toffee Refrigerator Cake
  Categories: Chocolate, Cakes
       Yield: 12 servings
  
   2 1/2 oz Unsweetened baking chocolate
            -(2-1/2 squares)
     1/2 c  Milk
     2/3 c  Granulated sugar
       5    Egg yolks, beaten
       1 c  Butter
       1 c  Confectioners' sugar
       5    Egg whites
       1 c  Graham-cracker crumbs
       1 c  Pecans, chopped
       1 c  Whipped topping
  
   Makes 12 servings
   
   Melt chocolate; cool.  Combine milk, granulated sugar, and beaten egg
   yolks in top of double boiler.  Cook over boiling water, stirring
   constantly, until thickened.  Cool.  Cream butter, powdered sugar,
   and cooled chocolate together.  Blend into cooled egg-yolk mixture.
   Beat egg whites until stiff.  Fold chocolate mixture into egg whites.
   Blend well.
   
   Combine graham crackers and pecans.  Sprinkle half the graham cracker
   crumb and nut mixture over the bottom of an 8-inch square pan.  Pour
   chocolate mixture into pan; top with remaining crumb and nut mixture.
   Chill for 24 hours.
   
   To serve, cut cake into squares.  Garnish with whipped topping.
   
   From Whitman's Chocolate Cookbook ISBN 0-517-64157-7
  
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