INGREDIENTS
2 cups
Blueberries
2 tbsp
Lemon, zest
4
Eggs, large
2 1/2 cups
All-purpose flour
2 tsp
Baking powder
1 cup
Brown sugar, packed light
1
Confectioners' sugar
1 cup
Granulated sugar
1/2 tsp
Salt
1 tsp
Vanilla extract
1
Cooking spray, Nonstick
1 cup
Butter, unsalted
1 cup
Sour cream