Old-Fashioned Snow Peak Frosting

In the bowl of a stand mixer blend egg whites and salt together in a bowl on medium speed until soft peaks form.

Meanwhile bring corn syrup to a boil in a saucepan; add marshmallows and stir until melted.

Raise mixer speed to high. Very carefully pour the hot syrup in a steady stream between the side of the mixing bowl and the moving beater. Beat until mixture is cool enough to touch; mix in vanilla extract. Makes enough to frost a 9x13-inch cake or an 8-inch layer cake.