1-1/2 cups egg whites (11 to 12 large eggs)
150 grams sifted powdered sugar (sift before measuring 1-1/2 cups)
100 grams sifted cake flour (not self-rising) (sift before measuring 1 cup)
1/4 teaspoon salt
1 1/2 teaspoons cream of tartar
200 grams granulated sugar (1 cup)
1 teaspoon vanilla