Pat shrimp dry and toss with cornstarch. In a bowl, combine shrimp with Shaoxing wine, soy sauce, and sesame oil. Marinate for 5 minutes.
In a small bowl, whisk together doubanjiang, ketchup, hoisin sauce, and broth to create the sauce.
Heat vegetable oil in a wok or large skillet over high heat until shimmering.
Add minced ginger and garlic to the oil, stir-frying for 15-20 seconds until fragrant.
Add the sauce mixture and cook for 30 seconds, stirring constantly.
Add marinated shrimp to the wok and stir-fry for 2-3 minutes until shrimp turn pink and are cooked through.
Season with salt, sugar, and white pepper to taste. Drizzle with sesame oil and serve immediately over rice or noodles.