I need to make a football cake for this weekend and the customer doen'st want chocolate icing she wants cream cheese. i don't like chream cheese icing so i never really mess with it. I know that color separates in it so I can't color it. can I airbrush it brown and will it run if I have to keep it in the fridge?
I color my cream cheese icing all the time and never have noticed it separating. Maybe its a different recipe than you use, but I've made brown cream cheese icing several times, especially if it is chocolate cream cheese icing. Then you could still airbrush it to get it darker, but I'm not sure why your separates. Again, maybe different recipes.
And I just have to say, you are probably the only person I've ever heard say they don't like cream cheese icing! I sure wish I didn't. My butt would be much smaller if I didn't!