Black Raspberry Oat Scones

INGREDIENTS

• 1 cup whole wheat pastry flour
• ½ cup oats, ground in a food processor
• 2¼ teaspoons baking powder
• ¼ teaspoon baking soda
• ½ teaspoon salt
• 6 tablespoons butter
• 2 tablespoons maple syrup
• 1 egg white, yolk reserved
• ¼ cup tablespoons buttermilk
• ½ cup black raspberries, frozen
• 1 tablespoon flour
• 1 tablespoon lemon zest
• 1 tablespoon water