Baking Basics: How to make Swiss Meringue Buttercream Frosting

Directions

1. 1
   Combine egg whites and sugar in a stand mixer bowl and place it over (not on) simmering water.
2. 2
   Heat mixture to 160 degrees F while whisking constantly.
3. 3
   Transfer mixer bowl to stand mixer, fitted with a whisk attachment and beat on medium high speed (speed 8 on a Kitchen
4. 4
   Aid stand mixer) until mixture cools, doubles in volume and forms stiff peaks; about 10-12 minutes.
5. 5
   Add butter in one piece at a time, mixing to incorporate after each addition. The mixture may appear clumpy and almost curdled looking at firstthis is normal. Keep mixing and it will become even and smooth again.
6. 6
   Add salt and flavoring, mix to combine.