INGREDIENTS
1/2 cup
butter (room temperature)
Zest from 1 lemon (about 2 teaspoons)
1 cup
sugar
1
egg
1 tsp
vanilla
2 cups
flour
2 tsp
baking powder
1 tsp
salt
2 cups
blueberries
1/2 cup
buttermilk
1/2 cup
flour
1/3 cup
sugar
3 tbsp
butter (divided)