
This pork and onion stir-fry is fast, savory, and packed with glossy wok-style flavor. Tender marinated pork cooks in minutes, while sweet onions and a tangy soy-based sauce make it perfect for a quick weeknight dinner.
In a medium bowl, combine the sliced pork with 1 tbsp water, cornstarch, 1 tsp Shaoxing wine, 1 tsp neutral oil, oyster sauce, baking soda, and a pinch of white pepper. Toss well and let the pork sit for 10 to 15 minutes while you prepare the other ingredients.
In a small bowl, stir together the ketchup, light soy sauce, Worcestershire sauce, sugar, dark soy sauce, the remaining 1/2 tsp Shaoxing wine, and the remaining white pepper until smooth.
Heat a wok or large skillet over medium-high heat until very hot. Add a light film of oil if needed, then spread the pork in a single layer. Let it sear briefly, then stir-fry for 1 to 2 minutes until the pork is lightly browned and about 80% cooked through. Transfer to a plate.
Add the garlic and onions to the same pan and stir-fry for about 30 seconds. Cook for 2 more minutes, stirring often, until the onions begin to soften but still keep a little bite.
Return the pork and any juices to the pan. Pour in the sauce and toss everything together for 1 to 2 minutes, until the pork is fully cooked and the onions are coated in a shiny sauce. Serve hot.
Slice the pork thinly against the grain for the most tender texture. If you do not have Shaoxing wine, dry sherry works well. Do not overcrowd the pan or the pork will steam instead of sear. Refrigerate leftovers in an airtight container for up to 3 days.