Preheat oven to 350 degrees. Grease a 9×5 loaf pan very well with non-stick baking spray.

In a medium bowl, combine the flour, baking powder, cinnamon, and salt. Whisk to combine, then set aside.

In a separate large bowl, whisk together melted butter, sugars, eggs, vanilla extract, and milk or applesauce until smooth.

Add the dry ingredients into the wet mixture and stir just until combined. Do not overmix.

Fold in the chopped apples gently.

Pour batter into the prepared loaf pan and smooth the top.

Bake for 60-65 minutes or until a toothpick inserted into the center comes out clean.

Remove from oven and let cool in the pan for 10 minutes, then transfer to a wire rack to cool completely.

Serve warm or at room temperature. Store leftovers in an airtight container at room temperature for up to 4 days.