German Chocolate Cheesecake Squares

1 package active dry yeast -- 1/4 oz.

1/2 cup warm water

1/4 cup sugar

1/2 teaspoon salt

1 egg

1/2 cup butter or margarine -- softened

2 to 2 1/2 c. flour

-FILLING- 19 ounces cream cheese -- softened

1/3 cup baking cocoa

1 cup sugar

3 eggs

2 teaspoons vanilla

-TOPPING- 1/2 cup sugar

1 egg

1/2 cup evaporated milk

1/4 cup butter or margarine

1 teaspoon vanilla

2/3 cup flaked coconut

1/2 cup chopped pecans

In a large mixing bowl, dissolve yeast in water. Add sugar, salt, egg, butter and 1 cup of the flour. Beat until smooth. Add enough remaining flour to form a soft dough. Turn onto a floured board. Knead until smooth and elastic, about 3-5 minutes. Place in a greased bowl, turning once to grease top. Cover and let rest for 20 minutes. Punch dough down. Press into the bottom and up the sides of a greased 15x10x1" baking pan. In a large mixing bowl, beat cream cheese until smooth. Gradually add cocoa and sugar. Beat until fluffy. Beat in eggs, one at a time. Add vanilla. Pour into crust. Bake at 350 F. for 20-25 minutes or until crust is golden brown. Cool. In a saucepan, combine first four topping ingredients. Cook over Low heat until thick, about 8-10 minutes, stirring constantly. Remove from the heat, stir in vanilla, coconut and nuts. Spread over cooled cake. Chill at least 1 hour. Store in refrigerator.