[bjames]

momoreg,
Since I had to remedy my situation earlier, I brought the icing to room temperature, which occurred in a very short time, since it is very hot today, and I added, and beat very well, powdered sugar. The result was tolerable, and only slightly grainy, and since the icing was made with cream cheese and butter, it is very delicious. I do, however, thank you for your suggestion and will remember it for the future.