Chocolate Meringue Pie
["1/2 c. sugar", "1/4 c. flour", "2 Tbsp. baking cocoa", "2 egg yolks", "2 c. milk", "1 Tbsp. margarine", "1 tsp. vanilla extract", "1 baked 9-inch pie shell", "2 egg whites", "1/2 c. sugar"]
["Combine 1/2 cup sugar, flour, baking cocoa, egg yolks, milk and margarine in double boiler; mix well.", "Cook over hot water until thickened, stirring constantly.", "Add vanilla; stir until well blended.", "Pour into pie shell.", "Beat egg whites in mixer bowl until soft peaks form.", "Add remaining 1/2 cup sugar gradually, beating until stiff peaks form.", "Spread meringue over filling, sealing to edge.", "Bake at 350\u00b0 until lightly browned.", "Yield:", "6 servings."]
["sugar", "flour", "baking cocoa", "egg yolks", "milk", "margarine", "vanilla extract", "shell", "egg whites", "sugar"]