Some of my sugar free Swiss meringue buttercream atop a Chocolate Cuffin. Traditionally, Swiss meringue buttercream is made by gently heating the egg white and sugar in a double boiler. However, my recipe (which is based off a recipe I’ve been using for a long time) does not cook the egg whites first.
It varies from American buttercream because it uses egg whites that are beat into a lovely meringue before adding loads of butter and it does not crust (American buttercream crusts, Swiss meringue buttercream stays soft). Some of my sugar free Swiss meringue buttercream atop a Chocolate Cuffin.
If you cannot find pasteurized whites in a carton, look for pasteurized whole eggs, and separate out the whites yourself. If you cannot find either, and you personally feel comfortable eating raw egg whites, then you can use regular whites. OR just use this recipe for traditional Swiss Meringue!