INGREDIENTS
1 cup
milk
1/4 cup
butter
1 1/4 cups
all-purpose flour
1 1/2 tsp
baking powder
3
large eggs (separated)
2 tbsp
granulated sugar
zest from two large lemons
1 tsp
vanilla extract
3/4 tsp
kosher salt
3/4 cup
ricotta cheese (preferably whole milk ricotta, not low-fat)