1 2/3 cups quick-cooking oats
3 ounces all-purpose flour (about 2/3 cup)
2.33 ounces whole-wheat flour (about 1/2 cup)
3/4 cup packed light brown sugar
2 teaspoons ground cinnamon
1 teaspoon baking powder
1 teaspoon baking soda
3/4 teaspoon salt
1 1/2 cups low-fat buttermilk
1/4 cup canola oil
2 teaspoons grated lemon rind
2 large eggs
2 cups frozen blueberries
2 tablespoons all-purpose flour
Cooking spray
2 tablespoons granulated sugar