INGREDIENTS
3
Egg whites, large
6
Egg yolks, large
3/4 tsp
Baking powder
1/4 tsp
Baking soda
2 cups
Cake flour
1 1/2 cups
Granulated sugar
3/4 tsp
Salt
1 tbsp
Vanilla extract
2 sticks
(9 oz, 255g) unsalted butter, unsalted
1 cup
Sour cream
Not as good as it should be for this maybe steps