In a medium saucepan, combine all ingredients except the cornstarch mixture, stir to combine and bring to a boil. Add cornstarch mixture. Reduce heat and simmer, stirring frequently until thickened. 15-20 minutes.
Preheat wok over medium-high heat, then add the oil and heat for 1 minute. Add the onions and peppers, cook for 2-3 minutes, stirring frequently. Add the mushrooms and pineapple and cook for 2-3 minutes, stirring frequently. Move the wok to low heat.
Place the pork chops on the very hot grill and sear for 6-8 minutes. Turn 90° at 1.5-2 minutes, flip at 3-4 minutes, turn 90° at 4.5-6 minutes. Lower the heat to medium low and add a spoonful of sweet & sour sauce to the pork and brush to cover, flip and do the same on the other side. Finish cooking pork over medium low heat until an internal temperature of 140°F is reached (about 12-14 minutes total cooking time). Rest for 5 minutes before serving.
While the porkchops finish cooking, toss the vegetables, then add the snap peas and noodles, stir to combine. Add the sweet & sour sauce and mix well. Cook over low heat until the porkchops have rested and the noodles are heated through, 8-10 minutes, stirring occasionally.
Serve 4 individuals with healthy appetites, a pork chop, and a portion of stir-fried noodles.
Or to feed a group of 6, cut the pork off the bone, thinly slice, and toss together with the noodles & vegetables.
Garnish the stir-fry & pork with strips of green onion and toasted sesame seeds.