Black Bottom Pie
["9-inch baked pie shell", "1/2 c. sugar", "2 Tbsp. cornstarch", "1/2 tsp. salt", "2 c. milk", "2 eggs, separated", "2 tsp. unflavored gelatin", "3 Tbsp. cold water", "2 Tbsp. rum or rum flavoring", "1 oz. melted unsweetened chocolate, cooled", "1/4 tsp. cream of tartar", "1/3 c. sugar"]
["Bake pie shell. Stir together 1/2 cup sugar, cornstarch and salt in saucepan. Blend milk and egg yolk.", "Stir into sugar mixture. Cook over medium heat, stirring constantly, just until mixture boils. Reserve 1 cup of custard mixture.", "Set aside."]
["shell", "sugar", "cornstarch", "salt", "milk", "eggs", "unflavored gelatin", "cold water", "rum", "chocolate", "cream of tartar", "sugar"]