I visited a friend in Massachusetts a few years ago, and we made pumkin pie. Just because I was curious, I bought cool whip.
It’s not whipped cream, nor is it really similar to it. It’s essentially made similar to how you’d make mayonnaise, but instead of being savoury/sour it’s sweet. It’s also aerated so it’s not as dense. But yeah, it’s basically aerated dessert mayonnaise.