Da'S Chocolate Pie
["3 egg yolks", "1 1/3 c. sugar", "1/4 c. flour or cornstarch", "1/8 tsp. salt", "1 Tbsp. butter", "2 c. Pet milk", "3 Tbsp. cocoa", "1/2 tsp. vanilla"]
["Mix all dry ingredients.", "Add liquids; cook over medium heat, stirring until thickened.", "Pour into baked pie shell.", "Beat egg whites until stiff.", "Add 1/3 cup sugar; beat until creamy.", "Pour on top of pie and place in a 350\u00b0 oven until brown."]
["egg yolks", "sugar", "flour", "salt", "butter", "Pet milk", "cocoa", "vanilla"]