Chocolate Deluxe Pie

Graham cracker crust
14 oz. sweetened condensed milk
2 oz. unsweetened chocolate
1/4 tsp. salt
1/4 cup hot water
1/2 tsp. vanilla
2 cups whipped topping

Melt chocolate over double boiler with milk and salt till thick. Stir in hot water and cook for 2 to 5 minutes. Remove from heat and mix in vanilla. Cool completely. Fold in whipped topping and pour into graham cracker crust. Garnish with shaved chocolate or nuts.