Chocolate Cheesecake

Ingredients:
3/4 cups finely crushed graham cracker crumbs
1 tblsp sugar
2 tblsp butter, melted
1 pkg chocolate pudding and pie filling
3/4 cup sugar
1 cup milk
1 square Baker's unsweetened chocolate
3 8 ounce package cream cheese, softened
3 egg yolks
2 tsp vanilla
1/4 tsp salt
3 egg whites
1 cup sour cream

Instructions:
Combine graham cracker crumbs, sugar and melted butter. Press on bottom and sides of a greased 0 inch spring form pan. Combine pudding mix, sugar and milk in saucepan. Add chocolate. cook and stir over medium heat until mixture comes to a full boil. Remove from heat. Cover surface with waxed paper and set aside. 

Beat cream cheese until fluffy. Beat in yolks, vanilla, salt and pudding. Fold in egg whites. (Odd. Says nothing about beating the egg whites first.  Pour over crumbs in pan. Bake on lowest rack at 425F for about 35 minutes or until center is set lightly when touched. Cool 4 hours. Spread top with sour cream.