INGREDIENTS
2 tbsp
Lemon, zest
1/2 cup
Egg whites
2
Eggs, large
1/2
fresh lemon juice, fresh
1 3/16 cups
All purpose flour
1 tsp
Baking powder
1 3/4 cups
Granulated sugar
5/8 tsp
Salt
2 1/2 tsp
Vanilla
1 5/8 cups
Butter, unsalted
1/4 cup
Greek yogurt, plain
1/4 cup
Milk