Sweet Chocolate Pie
["1 1/2 c. white granulated sugar", "1/2 c. powdered cocoa", "3 Tbsp. cornstarch", "1/2 tsp. salt", "4 eggs, separated (reserve whites)", "1 c. evaporated milk (unsweetened)", "1 c. cold water", "1 tsp. vanilla", "2 Tbsp. butter"]
["In a medium saucepan, combine sugar, cocoa, cornstarch and salt. Add just enough milk to make a paste; mix well. Add yolks; beat and mix well. Add the remaining milk and water. Cook over medium-low heat; stir constantly until thickened to prevent lumping and burning. Remove from heat; stir in vanilla and butter. Pour into baked pie crust shell and spread evenly. Top with meringue; lightly brown. Makes 1 (9-inch) pie."]
["white granulated sugar", "powdered cocoa", "cornstarch", "salt", "eggs", "milk", "cold water", "vanilla", "butter"]