Meringue Frosting is made by whipping egg whites and sugar together to create a light and fluffy frosting. The meringue frosting is used to frost cakes and cupcakes but is also used as a piping to decorate desserts. A pastry bag is used with a star, fluted, or plain nozzle to create rosettes, strips of piping, nests, and other decorative designs on cakes, cupcakes, and many other types of desserts. Meringue frosting can also be added to pies and tarts and then cooked in a hot oven for a short period of time to give it a browned, crisp outer surface with a soft fluffy inside.
When making meringue frosting the egg whites and sugar are cooked together over simmering water to completely dissolve the sugar before it is whipped into a fluffy frosting. If the sugar does not get completely dissolved, the meringue frosting will have a grainy texture. When using a meringue frosting, it is best to serve it the day it is made but cake or cupcakes that have been frosted with it can be stored in the refrigerator for up to two days.