Frozen Cocoa Mousse Pie

1 package cream cheese softend
2/3 cups sugar
1/3 cup backing cocoa
1/4 cup milk
1 teaspoon vanilla extract
1 carton{8 oz.} frozenwhipped topping, thawed
1ghram cracker crust{"9"}


In a mixing bowl, beat cream cheese, sugar and cocoa. Beat the milk and vanilla until smooth. Fold in the whipped topping.Spoon into the crust. Cover and freeze for 20.min Garnish with additional whipped topping and cocoa if desired. { 8 servings.}