Instructions

1. Preheat the oven to 325. Grease or line 12 muffins cups.
2. In a large bowl, whisk together the whole wheat flour, oat bran, baking powder, baking soda, and salt.
3. In a medium bowl, lightly whisk the egg. Add the buttermilk, oil, honey, and vanilla.
4. Add the wet ingredients to the dry ingredients and stir until just incorporated, being careful not to overmix.
5. Gently fold in the diced nectarine.
6. Divide the batter among the prepared muffin cups. Sprinkle each muffin with a little turbinado sugar.
7. Bake 18-20 minutes, until a toothpick comes out clean. Allow muffins cool in the pan for 10 minutes before transferring them to wire rack to finish cooling.