Buttermilk Blueberry Cake

Bahan-bahan (24 porsi)

• 3¾ cups all purpose flour
• 2¼ teaspoons baking powder
• ¾ teaspoon baking soda
• ¾ teaspoon kosher salt
• 1¾ cups buttermilk
• 1½ cups granulated white sugar
• ½ cup canola or vegetable oil
• 2 large eggs
• 2 large egg whites
• 2 teaspoons freshly grated lemon zest
• 2 cups fresh blueberries ((or 12-ounces frozen blueberries, thawed))
• 1 tablespoon all purpose flour
• 2 tablespoons coarse sugar ((such as Sugar in the Raw or Demerara))