The smoothest, fluffiest, and silkiest frosting you will ever try! Whit only three simple ingredients, you will have a perfect cupcake, cake, or dessert topping in 30 minutes.
Separate the egg whites from the yolk and place them with the sugar in your mixing bowl.
6 Egg whites, 400 g Granulated sugar
Place the bowl onto a double boiler (a big pot filled with 2 inches of simmering water). Whisk until the egg whites are hot to the touch and you can't feel any sugar grains anymore, or the candy thermometer reads 160°F.
Place the bowl onto your stand mixer (or use your hand mixer) and whisk on medium-high until the egg white is stiff and cooled. The bowl has to be cold to the touch.
Slowly add cubed, soft butter and mix until smooth.