08/19/2026
When I first started decorating sugar cookies, I struggled a lot with my royal icing spilling over the edges of my cookies. It was a frustrating learning curve, but eventually I figured out how to avoid it and I no longer have that issue!
In my experience, the most important factor is the consistency of your flood. If it's too thin, you run the risk of overfilling the cookie and the icing spreading over the sides. For me, the perfect flood consistency is 15 seconds. This means that when you drag your spoon or spatula through your icing as your mixing, it takes about 15 seconds to settle flat. It should also ribbon smoothly off your spatula in an even unbroken stream.
If you're like me and use a thicker icing to outline your cookies, this can certainly help to prevent spillage, but it's not fool proof. Especially if your flood is too thin!
You could also always just use a thicker flood if 15 second icing is still giving you issues. If you do use thicker flood, just make sure to tap the cookie to settle the icing and pop any air bubbles that rise to the surface.
What is your go-to flood consistency?? Do you prefer thicker or thinner?
