Preheat your oven to 375°F (190°C) and line a 12-cup muffin tin with paper liners or spray with non-stick cooking spray.
In a medium mixing bowl, combine the all-purpose flour, whole wheat flour, baking powder, baking soda, and salt. Whisk together thoroughly.
In a large mixing bowl, whisk together the granulated sugar, brown sugar, unsweetened applesauce, vegetable oil, eggs, and vanilla extract until smooth and creamy.
Gradually add the dry ingredient mixture to the wet mixture and stir gently until just blended.
Fold in the fresh raspberries and chocolate chips, ensuring they are evenly distributed.
Spoon the batter into the prepared muffin cups, filling each about 3/4 full.
Bake for 18-20 minutes, checking for doneness with a toothpick.
Let the muffins cool in the tin for 5 minutes before transferring to a wire rack.
Dust with powdered sugar before serving, if desired.
Notes
For an added touch of elegance, lightly dust with powdered sugar before serving.