Substitute for whipped topping? I know that when a recipe calls for "whipped topping" it's code for Cool Whip. I am not a fan of Cool Whip, but want to make a recipe which calls for it. Is there a substitute that I can make or purchase that isn't totally artificial?

Trying to substitute Cool Whip in this recipe:

Banana-Berry Frozen Yogurt Bars

10-&#189; Honey Maid Honey Graham's, broken into quarters (42 rectangles)

&#189; cup sliced fresh strawberries
&#189; cup chopped bananas
&#188; cup blueberries

1 cup vanilla nonfat Greek-style yogurt
1 cup thawed frozen reduced-fat whipped topping


Line 9-inch square pan with foil, with ends of foil extending over sides. Arrange half the graham pieces, in 3 rows of 7 pieces each, on bottom of pan.
Pulse fruits in blender just until blended. (Some chunks should remain.) Spoon fruit into medium bowl; stir in yogurt and whipped topping. Spread over graham pieces in pan; top with remaining graham pieces, aligning over graham pieces on bottom layer.
Freeze 4 hours. Use foil handles to lift dessert from pan; cut between grahams into 21 bars. Let stand 5 minutes before serving.
You could whip your own cream. Use 1/3 of the amount of heavy cream as cool whip, and whip with a splash of vanilla extract and a pinch of sugar to taste, either by hand or with a mixer. If a recipe calls for 1 cup of "whipped topping", you would start with 1/3 cup of heavy cream which whips up to 1 cup.