Quick Ginger Pork Stir Fry

Step 1
Whisk soy sauce, cider vinegar, brown sugar, hoisin sauce, garlic, and salt together in a large glass or ceramic bowl until marinade is smooth. Transfer 1 tablespoon marinade to a separate small bowl. Add pork to remaining marinade in the large bowl and toss to coat. Let marinate briefly, about 10 minutes.

Step 2
Heat 1 tablespoon oil in a large skillet over high heat until glistening. Cook and stir pork pieces in hot oil until browned on all sides, about 2 minutes. Transfer pork to a plate and return skillet to heat.

Step 3
Stir red bell pepper and onion into the same skillet and drizzle remaining oil over the top. Cook and stir until vegetables are slightly softened, about 2 minutes. Add frozen vegetables and water chestnuts to onion mixture, drizzle 1 tablespoon reserved marinade over the top and sprinkle with ginger and red pepper flakes. Cook and stir until vegetables are tender yet still crisp to the bite, about 5 minutes. Return pork to skillet; cook and stir until heated through, about 1 minute more.