Mix Dry Ingredients:
In a large bowl, whisk together flour, sugar, baking powder, cinnamon, nutmeg, and salt.
Prepare Wet Ingredients:
In a separate bowl, whisk the egg, milk, vanilla extract, and melted butter until smooth.
Combine Mixtures:
Pour the wet ingredients into the dry mixture and stir until just combined. Gently fold in the diced apples.
Shape Fritters:
Scoop 2 tablespoons of batter per fritter and flatten slightly on a parchment-lined tray.
Preheat Air Fryer:
Set your air fryer to 370°F (190°C) and lightly spray the basket with oil or use parchment paper.
Air Fry:
Place fritters in a single layer and air fry for 8–10 minutes, flipping halfway through, until golden brown.
Optional Glaze:
Mix powdered sugar and milk, then drizzle over warm fritters before serving.