Prepare the Batter:
In a large bowl, whisk together the flour, sugar, baking powder, cinnamon, nutmeg, and salt. In a separate bowl, whisk the egg, milk, and vanilla extract until combined. Gradually add the wet ingredients to the dry ingredients, mixing until just combined. Fold in the diced apples.
Heat the Oil:
Heat about 2 inches of oil in a frying pan or deep fryer to 350°F (175°C). Ensure the oil is hot enough by dropping a small dollop of batter into it—it should sizzle and rise to the surface.
Fry the Bites:
Use a small scoop or spoon to drop tablespoon-sized portions of batter into the hot oil. Fry in batches to avoid overcrowding, cooking each fritter for 2–3 minutes per side or until golden brown.
Drain and Cool:
Use a slotted spoon to transfer the fritters to a paper towel-lined plate to drain excess oil. Let cool slightly.
Prepare the Glaze (Optional):
In a small bowl, whisk together the powdered sugar, milk or apple juice, and vanilla extract until smooth. Drizzle the glaze over the fritters or dip each fritter into the glaze for full coverage.
Serve:
Serve the fritters warm, either plain or glazed. Enjoy with coffee, tea, or cider for a cozy treat.