Blueberry Buttermilk Scones

Details

Ingredients

• cooking spray
• 2 cups all-purpose flour
• 4 tablespoons white sugar, divided
• 2 teaspoons baking powder
• ½ teaspoon baking soda
• ½ teaspoon salt
• ½ teaspoon ground nutmeg
• ½ cup butter, cut into chunks
• 1 cup fresh blueberries
• ¾ cup buttermilk
• 1 egg white, lightly beaten
• 1 tablespoon powdered sugar, or to taste