No Bake Cheesecake: 8 oz. cream cheese, 1/2 cup sugar, 1 cup sour cream, 2 tsp. vanilla extract, 8 oz. Cool Whip, 1 9 oz graham cracker crust......... Beat cream cheese and sugar together until smooth. Add sour cream and vanilla. Gently beat in Cool Whip. Pour into crust- invert top plastic cover of crust- chill 3-4 hours OR freeze 15 -30 minutes, depending on your freezer.