Chocolate Cream Pie
["1 1/2 c. sugar", "1/2 tsp. salt", "2 1/2 Tbsp. cornstarch", "1 Tbsp. flour", "4 Tbsp. cocoa", "3 c. milk", "4 egg yolks, beaten", "1 Tbsp. margarine", "1 1/2 tsp. vanilla flavoring", "2 pie shells, baked"]
["Combine sugar, salt, cornstarch, flour and cocoa.", "Gradually add milk.", "Cook over medium heat, stirring constantly, until mixture thickens.", "Boil for 1 minute and remove from heat.", "Stir a little of mixture into egg yolks, then blend yolks into mixture. Stir in margarine and flavoring.", "Pour in pie shells.", "Add meringue and bake until meringue browns."]
["sugar", "salt", "cornstarch", "flour", "cocoa", "milk", "egg yolks", "margarine", "vanilla flavoring", "pie shells"]