This no-cook frosting is light, fluffy, and perfect for decorating cakes and cupcakes.
In a clean mixing bowl, combine the granulated sugar and cream of tartar.
Ensure the bowl is dry to prevent clumping of the sugar.
Add the pasteurized egg whites and vanilla extract to the sugar mixture.
Using pasteurized egg whites ensures safety when consuming raw ingredients.
Pour the boiling water into the bowl and start mixing on low speed.
Pour the water carefully to avoid splashing.
Increase the mixer speed to high and whip until the mixture becomes fluffy and forms stiff peaks.
Stop mixing once stiff peaks form to avoid overbeating.
Use the frosting immediately to decorate your cake or cupcakes.
For a smooth finish, use an offset spatula to spread the frosting evenly.