Preheat the oven to 300 degrees. Prepare bread pan/s with nonstick cooking spray.

In a large bowl, whisk together flour, baking soda, and salt. Create a well in the center. Set aside.

In a medium bowl, combine the buttermilk, honey, and oil until blended. Pour into the well of the flour and mix together. (The chemical reaction will begin as soon as the wet ingredients mix with the dry ingredients.)

Immediately transfer the batter to the loaf pan/s. Sprinkle the top with oatmeal, if desired.

For the 9x5 pans, bake for about 55 to 60 minutes. For the jumbo (16x4) pan, bake for 65 to 70 minutes or until done.

Allow the bread to cool in the pan/s for 10 minutes before transferring to a wire rack to cool completely.