Begin by preheating the air fryer to 375°F for around 10 minutes. Generously coat the basket with cooking spray to prevent sticking.
For Zucchini Fritters:
Grate the zucchinis using the large holes of a box grater over a clean kitchen towel. Gather the towel around the zucchini and squeeze out as much water as you can, which will help the fritters keep their shape.
In a medium bowl, combine the squeezed zucchini with the beaten egg, Parmesan cheese, whole-wheat flour, garlic powder, onion powder, and black pepper. Mix thoroughly to combine.
Form the mixture into eight patties, each around 3 inches wide. Lightly coat the tops with cooking spray. Place them in a single layer in the air fryer basket, cooking them in batches if necessary.
Cook the fritters for 7 minutes, then carefully turn them over and cook for an additional 7 minutes or until they're golden brown and crispy all around.
Serve the fritters warm topped with a dollop of sour cream and a sprinkle of fresh mint for a revitalizing touch. Savor the crisp and tender zucchini fritters!