Has anyone tried this recipe? I've read the reviews, but no one states if it will hold up okay on cupcakes with a swirl type pipe? If anyone knows, let me know! Thanks guys!
http://cakecentral.com/recipes/2019/whipped-cream-buttercream-frosting

That's Charlotte's Whipped Cream Buttercream. it's all i've used for a decade.

Does this icing hold up well in the heat?

Yes it's fine on cupcakes and cakes. I use it a lot as well and it's great. I have used it with all HR shortening, all butter, and combinations of both. All versions turn out great.

yes it's heat and humidity stable. That's the main reason I switched to it.

Thanks again! You area all so helpful. Slowly building up my 'go to' recipes! Its really great to have feedback before you go and try it out! Thanks