Swiss Meringue Butter cream

Ingredients

5 Large egg whites
1 cup granulated sugar
1 cup unsalted butter softened
1 cup shortening
1-1/2 cup Powdered sugar
1 tsp Vanilla extra

1) Combine sugar and the egg whites to a large bowl ( your you can use your stand mixer bowl
)and cook it in a double boiler until the sugar has dissolved

2) Beat it until its is stiff peaks stage( your mixture should be glossy and holds it shape if you don't see this beat it more)

4) Sift in the powdered sugar and beat it at the lowest speed. Now slowly add in the butter and the shortening  lastly add in the flavoring