Chocolate Pie
["2 c. sugar", "5 egg yolks", "3 Tbsp. cocoa", "1 tsp. vanilla extract", "1 tall can evaporated milk", "1/2 can cold water", "2 Tbsp. cornstarch", "1/2 stick margarine"]
["Mix water, cornstarch and cocoa. Add other ingredients. Cook until thickens.", "Pour into baked pie shells."]
["sugar", "egg yolks", "cocoa", "vanilla extract", "milk", "cold water", "cornstarch", "margarine"]