Chocolate Pie Filling

1 6 oz. pkg chocolate chips
1 Egg
2 Egg yolks; beaten
2 Egg whites
1 pt Whipping cream; whipped
1 ts Vanilla
1 Baked pie shell; 8 or 9 inches Melt 1 package chocolate chips with 1 beaten egg. Remove from the heat and add eggs yolks. Beat two egg whites in another bowl and add to the whipped cream and vanilla; fold this into first mixture. Fill Pie shell. Chill. Serves 6