Step 2
Heat the wok over medium-high heat. Add the canola oil, garlic, ginger, and fermented black beans and cook until fragrant, stirring often, about 10 seconds. Add the ground pork and cook, stirring occasionally and breaking up the meat with a wooden spatula or spoon, until it is browned, 3 to 5 minutes. (Lower the heat to medium if the garlic starts to burn.) Add the reserved ground peppercorns, the tofu, and the soy sauce mixture. Cook, stirring once to combine until the sauce is reduced, thickened and glossy, about 2 minutes.