Oat Scones with Cranberries and Walnuts - Cooking by the Book

Ingredients

• 1 ¾ cups + 1 tablespoon unbleached all-purpose flour
• ⅔ cup whole wheat pastry flour
• ½ cup sugar
• 1 tablespoon baking powder
• 1 ¼ teaspoons kosher slat
• 1 teaspoon cinnamon
• ¾ teaspoon baking soda
• 1 ¼ cups unsalted butter, cold, in ½-inch dice
• 2 ½ cups old-fashioned rolled oats
• ⅞ cup dried cranberries
• ¾ cup walnuts, toasted, coarsely chopped
• 1 ½ cups buttermilk
• 1 large egg
• Turbinado sugar for sprinkling on top