INGREDIENTS
1 cup
unsalted butter (at room temperature)
1 tbsp
baking powder
2 1/2 cups
white sugar
3/4 tsp
salt
3 tsp
vanilla extract
5
large egg whites (10 tablespoons liquid egg whites)
2 3/4 cups
cake flour
1 cup
milk (at room temperature)
1 cup
unsalted butter, softened
1 32 ounce package
powdered sugar
8 tbsp
lemon juice
3
medium lemons
8 cups
cold water
2 cups
white sugar plus extra for tossing
lemon curd