Yogurt and Whipped Cream Pie

1 graham cracker crust
1 container (8 oz) Cool Whip (Or mix 1 cup whipping cream until soft peaks form. Gently incorporate 1 tablespoon sugar.)
2 containers (6 or 8 oz) any flavor yogurt (can mix flavors)

Fold yogurt into whipped cream and pour into graham cracker crust.
Freeze until hardened.
To Serve: Remove from freezer and allow to warm slightly before serving.

(Carole OR)