I don't know if you've already tried to remedy the icing, but here is what you can do. First, bring it to a cool room temp, then melt down only 30% of the icing in the microwave, or over a water bath. Pour that into the icing, and let it go on the mixer for awhile. It may not remove all the graininess, but it will be 30% better. If you melted it down all the way, you would absolutely end up with a mess.
Let us know how it goes. |