01 - Sprinkle the eggplant batons lightly with salt and let them rest for 10 minutes to extract excess moisture. Rinse well and pat dry with paper towels.
02 - Heat 3 tablespoons of vegetable oil in a wok or large skillet over medium-high heat. Add the eggplant and fry for 6 to 8 minutes, turning occasionally, until golden and soft. Remove the eggplant and drain on paper towels.
03 - Wipe excess oil from the pan, leaving about 1 tablespoon. Add chopped ginger, minced garlic, and sliced chili. Stir-fry for 1 minute until fragrant.
04 - Stir in the doubanjiang and cook for 1 minute, stirring constantly until the oil is red and aromatic.
05 - Return the fried eggplant to the pan. Add soy sauce, dark soy sauce, rice vinegar, sugar, and vegetable stock. Stir gently to coat the eggplant evenly.
06 - Cover the pan and simmer over low heat for 8 to 10 minutes until the eggplant is very tender and the flavors are well melded.
07 - Mix cornstarch with 2 tablespoons water to create a slurry. Stir into the pan and cook for 30 seconds until the sauce thickens.
08 - Drizzle with sesame oil and top with sliced spring onions. Serve hot.