Vanilla Buttercream

This is from all you magazine, it goes along with the carrot cupcake recipe i posted (recipe #189040).

Set electric mixer bowl over a saucepan of simmering water.

Whisk egg whites and sugar until sugar is nearly dissolved.

Remove bowl from pan.

Whip mixture at high speed until stiff.

Reduce speed and beat until cool , 5 minutes.

Add cold butter 1 piece at a time at medium low speed.

After all butter is added , beat at high speed until fluffy.

Add salt and vanilla and mix at low speed until well blended.

Time to frost the cupcakes !.

egg whites, granulated sugar, unsalted butter, salt, vanilla extract