Preheat the air fryer: Start by preheating your air fryer to 375°F (190°C) for about 3-5 minutes. This step is crucial for achieving that golden crispiness.
Prepare the mushrooms: Clean the 3 large portobello mushroom caps by wiping them with a damp cloth. Carefully remove the stems and gills using a spoon to create a flat surface.
Slice the mushrooms: Cut the prepared mushroom caps into ½-inch strips. Aim for even sizes for uniform cooking.
Set up your dredging station: In three separate bowls, place ½ cup of all-purpose flour in one, the 2 beaten eggs in the second, and a mixture of 1 cup panko breadcrumbs combined with ½ cup grated Parmesan cheese, 1 tsp garlic powder, 1 tsp onion powder, 1 tsp paprika, 1 tsp kosher salt, and ½ tsp black pepper in the third.
Dredging process: Dredge each mushroom strip in the flour, shaking off excess. Then dip it into the beaten eggs, allowing any excess to drip off before rolling it in the breadcrumb mixture. Ensure each strip is well-coated.
Air fry the fries: Arrange the coated mushroom strips in the air fryer basket in a single layer. Lightly spray with cooking spray for additional crispiness. Cook for 7-9 minutes, or until they turn golden brown and crispy.
Serve: Once done, remove the mushroom fries from the air fryer and serve them warm with ranch dressing for dipping. Enjoy your crispy treat!