I iced my cake last night. This morning there were little green and white spots in my buttercream. Has anyone had this problem before? I added a lot of gel color to the icing to turn it navy, but I have never heard that turning into a problem. Thanks!

is your house real warm? I had black bc do that to me, it seperated into green and white. heat was on. during the summer I never had a problem with the air conditioner on. IMO that is one possilbity.

What icing recipe did you use?
What exact ingredienst did you use?
What brand of coloring?
How was the cake stored overnight? (If on counter, what was ambient room temp?)

I used an american buttercream recipe with half crisco and half butter. It's from designmeacake.com. The coloring is wilton. The cake was stored overnight on my turntable with a cover loosely over it (to keep dust and such off of it). My house got up to 71 or so.

Here is a pic

It appears as thought the buttercream was not thoroughly mixed. The green parts are the bits of shortening that were not creamed with the rest of the ingredients.

As an instructor, I see it often in students' icings and the most common culprit in not mixing the icing long enough.

Also, if you used butter and it was not soft enough it will not cream properly and will leave spots like that.

I agree with Jill & JoJo. It needed to be mixed longer. I've had the same problem. Now I cream the shortening,butter & milk throughly before adding the PS and flavoring.

HTH

oooooh, okay. Thank you for your help! I must have been in a rush when I made this batch