Adding Jello Powder to their buttercream? For instance mix the powder with the water, and then mix into buttercream (don't use any extra water than what is already called for)

I was wondering if this would flavor the butter cream?

Hmmm...the things you think of in the car!

I think it would flavor it if you used a flavored jello.. but mixed with butter, not sure if it would be good. I've used unflavored gelatin in fresh cream for my strawberry shortcake...

I wonder if it would effect the texture because of the gelatin in it. I haven't ever tried it - please post results if you do.

I've done that before, but I just added the straight powder to the buttercream without mixing it with water. Keep in mind, though, that if it's a colored jello that it will tint the BC whatever color it is. As for the flavor, it was pretty good. Not sure I'd do it again though, unless requested, as it didn't exactly WOW me, but it was good.

Are you just wanting the stability of the gelatin? If not, you might try Kool Aid. I'm having good luck experimenting with Kool Aid powder in both cake and icing. Just a touch...a 1/4 to 1/2 teaspoon.

I don't know about buttercream - but I substituted Orange Jello gelatin for unflavored gelatin in my rolled fondant recipe and it turned out wonderful.

I would think you could use it like you do unflavored gelatin in stabilized whipped cream icing also. You just need to adjust for the included sugar content.

Let us know if anyone uses it in buttercream. I'm really interested because it opens up a world of flavoring possibilities.