INGREDIENTS
1
Lemon, Zest of
2
Eggs, large
1 1/2 cups
All-purpose flour
2 tsp
Baking powder
1 1/2 cups
Confectioners' sugar
1 cup
Granulated sugar
1/2 tsp
Salt
1 tsp
Vanilla extract
1/2 cup
Butter, unsalted
1/2 cup
Buttermilk or plain low-fat yogurt, low-fat