This gluten-free royal icing recipe is perfect for decorating cut-out cookies. It dries to a smooth, hard finish, making it ideal for intricate designs and decorations.
Instructions: Sift powdered sugar and meringue powder together in a bowl. With 4 tablespoons of water and vanilla extract added to the dry ingredients, mix them well. On low speed, beat the ingredients together with a hand mixer or stand mixer. Slowly add more water, one tablespoon at a time, until the icing is smooth and easy to spread. Speed up the mixer to medium-high and keep beating for another five to seven minutes, or until stiff peaks form in the icing. More water should be added if the icing is too thick. More powdered sugar should be added if it's too thin. You can decorate cookies right away, or you can put it in a container that won't let air in and use it in three days.