Mom'S Chocolate Pie - cooking recipe

Ingredients

3 Tbsp. cocoa (heaping)
3 Tbsp. flour
1 1/2 c. sugar
3 egg yolks (save whites)
1 1/2 c. milk
1/4 tsp. cream of tartar
1 deep-dish shell or 2 shallow shells

Preparation

Bake shell according to instructions provided. Mix all dry ingredients together in saucepan. Add rest of ingredients and cook over low heat until thick. Pour in baked pie shell.