01 -
Heat a large pan over medium heat and add 2 tablespoons vegetable oil. Once hot, add napa cabbage, bean sprouts, carrots, and mushrooms. Stir constantly until vegetables begin to soften, about 2-3 minutes.
02 -
Add green onion, cornstarch slurry, white sugar, salt, and ground black pepper. Stir and cook for another 1-2 minutes, until vegetables are softened but still slightly crisp. Remove from heat and set aside.
03 -
Lay a spring roll wrapper flat in a diamond position. Brush the upper corner with cornstarch-water mixture. Place 3 tablespoons of filling onto the center. Fold the lower corner over the filling, then fold side corners over, and roll up tightly. Seal the seam with additional cornstarch mixture if needed. Repeat with remaining filling and wrappers.
04 -
Preheat air fryer to 400°F (204°C) for 3 minutes.
05 -
Lightly brush all sides of each spring roll with oil. Arrange rolls in a single layer in the air fryer basket, leaving 1.3 cm (0.5 inch) space between. Work in batches if necessary.
06 -
Air fry at 400°F (204°C) for 12-15 minutes, turning halfway through, until golden brown and crisp on all sides. Serve immediately with your preferred dipping sauce.