Dice the apples into small cubes and set aside. Peel them if desired.
Add the flour, sugar, baking powder, salt, ground cinnamon, and ground nutmeg into a large mixing bowl and stir to combine.
In a separate bowl, mix the milk, butter, egg, and lemon juice.
Add the wet ingredients into the dry ingredients and stir just until combined. Stir in the apples and put mixture into the fridge for anywhere from 5 minutes to 2 days (covered).
Preheat your air fryer to 370 degrees.
Put a parchment round on the bottom of the basket and scoop out apple fritters into 2-tablespoon balls. Place apple fritters in the air fryer and cook for 6-7 minutes.
While cooking, whisk the confectioners sugar, milk, cinnamon, and salt together to make the glaze.
Remove the apple fritters from the air fryer, place them on a wire rack, and immediately pour the glaze over top and enjoy!