01 -
Set the oven temperature to 175°C.
02 -
In a large mixing bowl, whisk together Greek yogurt, applesauce, eggs, milk, vanilla extract, and brown sugar until the mixture is smooth and homogeneous.
03 -
Incorporate baking powder, baking soda, cinnamon, and salt into the wet mixture, whisking until fully combined.
04 -
Gently fold in whole wheat flour and chopped apples with a spatula just until all flour is moistened; avoid overmixing.
05 -
Lightly grease a non-stick muffin tin or line with paper liners, then fill each cup to the brim with batter.
06 -
Place the muffin tin in the oven and bake for 20 to 25 minutes, until a toothpick inserted into the center emerges clean or with moist crumbs.
07 -
Allow muffins to cool in the pan for 5 to 10 minutes before transferring to a wire rack to cool completely.