Chocolate Chess Pie
["1 unbaked 9-inch pastry shell", "3 eggs, beaten", "1 1/2 c. sugar", "2 Tbsp. all-purpose flour", "3 1/2 Tbsp. cocoa", "1/4 c. butter, melted", "1/2 c. evaporated milk", "1 tsp. vanilla extract", "whipped cream for garnish"]
["Bake pastry shell at 350\u00b0 for 5 minutes; set aside.", "Combine eggs and next 6 ingredients in a medium bowl and stir well.", "Spoon egg mixture evenly into prepared pastry shell.", "Bake at 350\u00b0 for 45 minutes.", "Garnish with whipped cream.", "Yields 4 to 6 servings."]
["pastry shell", "eggs", "sugar", "flour", "cocoa", "butter", "milk", "vanilla extract", "whipped cream"]