1. Preheat Oven:
Preheat oven to 350°F (175°C). Grease or line an 8×8-inch baking pan with parchment paper.

2. Mix Dry Ingredients:
In a large bowl, combine oats, flour, brown sugar, baking powder, cinnamon, and salt.

3. Combine Wet Ingredients:
In another bowl, whisk together applesauce, honey (or maple syrup), eggs, and vanilla extract.

4. Make Batter:
Pour wet ingredients into dry ingredients and stir until just combined. Gently fold in diced peaches.

5. Bake:
Spread the batter evenly in the prepared pan. Bake for 30-35 minutes, or until a toothpick inserted in the center comes out clean.

6. Cool and Serve:
Allow to cool before slicing into bars. Enjoy as a quick, nutritious breakfast or snack!