EXTRA NOTES ABOUT THIS RECIPE:
-Royal icing and oil are NOT friends. make sure all of your utensils are oil free, including your bowls. wash them well in hot water, and give them a rub with lemon juice or vinegar before using them.
-Royal icing keeps for a long time. MANY leave it covered on the counter for up to a month with no problem. Or you can refrigerate it.
-If you need to refresh it, you can fluff it up again with the mixer, and it will be like new.
-If you are expecting humidity, add a little less meringue powder, and a little cream of tartar. Cream of tartar is a stabilizer and helps when it’s humid. It seems to work.
-It’s also alright to add a little bit of corn syrup to your icing if you want it to be a bit shinier.