
Mix dry ingredients together in a large bowl (except 2 tbsp oats). Add 2 cups buttermilk. Stir lightly with a fork just until moistened. Gather into a ball. Place onto a floured board. Using a spatula, gently rotate so that all sides are coated with flour and are no longer sticky. Transfer to a cookie sheet coated with cooking spray. Pat into a 10" circle. Score into 16 wedges with a knife. Brush top with remaining buttermilk. Sprinkle with remaining oats. Bake for 45 to 50 minutes at 350°F or until golden brown. Remove from oven. Place on a cooling rack. Cover bread with lightly dampened cloth and cool for 10 to 15 minutes.