Preheat oven to 350 degrees F. Grease a 9" loaf pan with non-stick cooking spray, then layer it with parchment paper.

In a small mixing bowl, whisk together dry ingredients and set aside.

In a larger mixing bowl, beat together wet ingredients (minus the peaches). Add dry to the bowl and mix until incorporated.

Peel peaches, then dice three of the halves, and thinly slicing the fourth half. Fold diced bits into dough.

Transfer dough to loaf pan, smoothing with the back of a rubber spatula. Arrange peach slices on top and sprinkle with additional oats (optional).

Bake on center rack for 60 - 75 minutes, until a knife inserted in the center comes out clean. Remove from oven, let cool in pan for 5 minutes, then transfer to a wire rack and cool completely. Resist the urge to slice into it, the loaf needs to be completely cool or it may be slightly gummy inside.

Slice and serve immediately, or wrap slices in tinfoil and freeze for later.

Enjoy!