Chocolate Pie - cooking recipe

Ingredients

4 Tbsp. cocoa
3 c. sugar
1/2 stick oleo
3/4 c. plain flour
3 c. milk
4 egg yolks

Preparation

Mix cocoa, sugar and flour well, then add other ingredients and cook over medium heat, stirring constantly until it boils and thickens.
Remove from heat.
Add 1 teaspoon vanilla.
Pour into baked 9-inch deep dish shell.
Top with egg whites.