Pie Filling(Basic) - cooking recipe

Ingredients

1 c. sugar
3 Tbsp. flour
3 eggs, separated
2 c. milk
1 Tbsp. vanilla
lump of butter

Preparation

Mix sugar, flour, egg yolks and milk. Cook over low heat until mixture starts to bubble.
Cook until thick; remove from heat. Add butter and vanilla.
Pour into baked pie shell. Top with meringue (made from egg whites) and brown lightly.