01 - Heat sesame oil in a large skillet over medium heat. Add minced garlic and grated ginger, sauté for 1 minute until fragrant.
02 - Add shredded cabbage, julienned carrot, and sliced green onions to the skillet. Cook for 3–4 minutes until softened. Stir in bean sprouts, soy sauce, and black pepper. Sauté for another 2 minutes, then remove from heat and let the filling cool completely.
03 - Place a spring roll wrapper on a clean surface in a diamond orientation. Spoon 2 tablespoons of filling near the bottom corner. Fold the corner over the filling, roll halfway, fold in both sides, and continue rolling tightly. Brush the final edge with cornstarch slurry to seal. Repeat with remaining wrappers and filling.
04 - Preheat the air fryer to 390°F (200°C).
05 - Lightly spray all sides of the spring rolls with oil and arrange in a single layer in the air fryer basket. Work in batches if necessary to avoid overcrowding.
06 - Air fry for 7–8 minutes, flip the spring rolls, then air fry for another 5–7 minutes until golden brown and crispy.
07 - Whisk together soy sauce, rice vinegar, sugar, and chili flakes in a small bowl until sugar dissolves completely.
08 - Serve the spring rolls immediately while hot and crispy with the prepared dipping sauce on the side.