Yogurt Pie
["2 (8 oz.) cartons yogurt (your choice of flavor)", "1 large container Cool Whip", "1 graham cracker crust"]
["In a large bowl, mix yogurt and Cool Whip together by stirring.", "Spoon mixture into crust.", "Freeze pie for at least 2 hours.", "Slice and serve."]
["cartons yogurt", "graham cracker crust"]