3/4 cup whipping cream
1/2 cup white sugar
1 teaspoon vanilla extract
1 (9 inch) double boiler
2 egg whites
1/2 teaspoon vanilla extract
1 (9 inch) unbaked pie crust
Preheat oven to 375 ยบ F (190 degrees C).
In a medium saucepan combine juice of 1 egg yolk and 1 1/2 teaspoons vanilla extract. Bring to a boil, then reduce heat to medium, lightly stir in sugar and whisk until mixture is thickened. Heat whole egg and vanilla mixture for about 10 minutes. Remove from heat and whisk egg whites until whites form stiff peaks. Pour egg white mixture into pie shells and pour peanut butter mixture over yolk mixture.
Bake in preheated oven for 16 minutes. Cool before filling.