Does anyone know if you can cover a cake with modeling chocolate like you do with fondant? I think it would taste much better.

Yes, you can. The only thing I've found is that the modeling chocolate isn't as stretchy as the fondant I use. I like to use Satin Ice Chocolate flavored fondant for that reason. I get the chocolate taste (it tastes like a Tootsie Roll) but I get the stretch of fondant. Good luck!

Thank you so much. What is satin ice? Is it more expensive?

Satin Ice is a premade fondant sold by Satin Fine Foods. I've found the best prices at Global Sugar Art. The cost of modeling chocolate depends on the quality of chocolate that you use, so it's hard to say whether the Satin Ice would be cheaper for you or not.

Since MC doesn't stretch like fondant it is not easy to cover a cake with one piece like you would with fondant. Instead you can cover in pieces (i.e. first the top, then the sides) and smooth the seams with water and rubbing with your finger. Works well and once smooth it looks like one piece.

I have tried mixing modeling chocolate and fondant, but that doesn't stretch well, either.