Crunchy Coconut Topping (below)
Grease and flour a 13 x 9 x 2 inch baking pan.
In bowl stir first 3 ingredients; set aside. In large bowl with mixer at high speed beat next 3 ingredients for 3 min. or until fluffy. Reduce speed to low; beat in real mayonnaise and chocolate. At low speed add flour mixture in 4 additions alternately with water, beating just until blended after each addition.
Pour into pan.
Bake in 350 degree F oven 45 min. or until tester comes out clean.
Cool completely in pan. Serves 15
Crunchy Coconut Topping: In saucepan, stirring constantly, bring 3/4 cup firmly packed brown sugar and 1/4 cup margarine to boil over medium heat, boil 2 minutes.
Add 3 Tbsp. milk, 1-1/3 cups flaked coconut and 1/2 cup chopped walnuts. Stirring constantly, boil 1 minute. Spread on top of cake. Broil 6 inches from heat 3 minutes or until golden brown. Cool.