1 1/2 c. sugar
1/3 c. cornstarch
1/2 tsp. salt
3 c. milk
3 egg yolks, slightly beaten
1 tbsp. butter
1 1/2 tsp. vanilla
1/2 c. cocoa
1 small carton whipping cream
2 tbsp. powdered sugar

Mix sugar, cornstarch, cocoa and salt together in saucepan. Gradually stir in milk. Cook over medium heat, stirring constantly, until thickens and boils. Boil 1 minute. Remove from heat. Gradually stir at least half of hot mixture into egg yolks. Then blend into hot mixture in saucepan. Boil 1 minute more, stirring constantly. Remove from heat. Blend in butter and vanilla. Pour immediately into 9-inch cooked pie shell. Serve with sweetened whipped cream. Whip the whipping cream and powdered sugar together until fluffy and stiff. Dot over pie when it is cool.