I'm trying to mix color in whipped cream for decorations, but it always bleeds the color down to my white cake coat foundation. Can somebody help?
Make sure your cake fondant isn't too runny.
It might be a good idea to let the fondant on the cake set for a few hours before topping on the whipped cream, in order to harden the foundation to prevent colors from bleeding in.
Here is a thread of comments that focuses on the issue with bleeding colors from whipped cream: Keep Colors From Bleeding?