Make sure that the water level isn’t so high that you risk getting water in the mixing bowl. The water should not be boiling; if it begins to get too hot, reduce the heat.
Keep a close watch on the temperature of the icing, as it could easily overcook. If the icing seems quite slow to warm, increase the burner temperature. It should reach 160 degrees within 2 or so minutes.
This icing has a loose consistency, so pour it over your cake or cupcakes rather than using a knife to frost them. If the mixture seems too loose, return it to heat for a few minutes to allow it to thicken.
This icing can be easily altered to make a chocolate buttercream by adding a few tablespoons of cocoa. Add a few drops of lemon juice, almond extract, or another flavoring to match the cake flavor you made. Create a colorful buttercream icing by mixing in a few drops of food coloring. You can also add whatever flavor you like! For example, adding strawberry jam can make your buttercream flavor pop.
If you need to thicken the icing, add more powdered sugar. To thin out the icing, add a spoonful of milk.
Lemon juice Orange juice Maple syrup Bourbon Raspberry jam Chocolate syrup