INGREDIENTS
•
2 1⁄2 cups all-purpose flour
•
1 teaspoon all-purpose flour, for blueberries
•
2 teaspoons baking powder
•
1⁄2 teaspoon salt
•
1 cup butter, room temperature
•
1 cup light brown sugar, packed
•
1 cup sugar
•
4 large eggs
•
1 teaspoon vanilla extract
•
1 cup sour cream
•
2 cups blueberries
•
2 tablespoons grated lemon zest