My recipe is 1,2,3 let’s say 1/2 cup egg whites, 1 cup granulated sugar , 11/2 cup butter. Heat in double boiler egg and sugar till you can’t feel the sugar granuals. Pour in mixer and mix until a medium peaks ( I don’t cool mine). Then add room temp butter I keep some a little colder. If it doesn’t come together thick your butter is to soft add a little more cold. Add vanilla and I like almond. Hope this helps
