Preheat oven to 180°C (350°F) and prepare a muffin mold with muffin liners. In the meantime, peel and cut the apples into small pieces.
In a large bowl, combine applesauce with eggs, maple syrup, oil and vanilla extract. Once combined, whisk in ground cinnamon and mix until smooth.
Using a rubber spatula or fork, stir in the flour, baking soda and salt. Mix wet and dry ingredients together until you get a smooth muffin batter.
Fold in the peeled apples, cut into small chunks.
Fill ⅔ of each muffin liner with the batter and bake in hot oven for 20 to 25 minutes. Do not overbake; they are ready when a toothpick inserted into the center comes out clean.
Remove your apple muffins from the oven and let cool over a baking rack for about 15 minutes.