Can you substitute cool whip for whipping cream?

Yes, you can substitute Cool Whip for whipped cream in baking and desserts and use it the same way. Cool Whip holds its shape better if folded as opposed to mixed. Some desserts might become slightly sweeter in flavor when replacing whipping cream with Cool Whip. Also consider how stable you need the recipe to be as Cool Whip does not hold up quite as well to room temperature as traditionally homemade whipping cream frosting/glaze/topping might (especially under direct sunlight or in areas of humidity and/or heat).