🌡️Storage
Cake: You are better off freezing your cake if you don't need it for a few days, rather than leaving it in the fridge. That's another reason I prefer icing without butter. You can leave your cake in an airtight container on the counter for 3-4 days after it's made if it doesn't have a perishable filling.
Frosted Cake: You can also freeze fully iced cakes with this frosting. But just be sure to put it in a sealed cake container. And if you need it frozen for more than a few days, wrap the container in 2 garbage bags and push the air out.
Frosting: Store this easy frosting recipe at room temperature for up to 5 days. The small amount of milk is stabilized by a large amount of sugar. You can freeze it for up to 3 months.