INGREDIENTS
2 1/2 cups
cake flour
1 tsp
baking powder
1/2 tsp
baking soda
1/2 tsp
salt
3/4 cup
buttermilk
3 tbsp
lemon zest
1/4 cup
lemon juice from 3 lemons
1 tsp
vanilla extract
1 3/4 cups
granulated sugar
12 tbsp
butter
3 larges
eggs
1
egg yolk
3 cups
confectioners' sugar
3 tbsp
lemon juice
2 tbsp
buttermilk