Preheat your oven to 350°F (175°C).

Line your muffin tin with liners or grease it lightly.

In a mixing bowl, whisk together the whole wheat flour, protein powder, baking powder, and salt.

In another bowl, mix the honey (or maple syrup), applesauce, eggs, milk, and vanilla extract.

Pour the wet ingredients into the dry ingredients and stir until just combined.

Evenly distribute the batter into the prepared muffin tin, filling each cup about ¾ full.

Bake in the preheated oven for 18-20 minutes, or until a toothpick inserted comes out clean.

Allow the muffins to cool in the tin for 5 minutes before transferring them to a wire rack.