Cut the rind from the pork chops if they have it, leaving a little bit of the fat on the chops.
Your butcher should do this for you.
Deseed and slice the peppers into strips around 1cm (~½") thick.
Peel, top and tail the onion, then cut into 8 wedges.
Cut the carrot into thin strips 3-5mm (~¼") thick, then into lengths around 3-4 cm (1¼-1½") long.
Mix together all of the ingredients for the sweet and sour sauce.
Season the pork chops with salt.
Heat a 28cm or 11" frying pan (not nonstick if possible) over a high heat, and add the cooking oil, then sear the pork chops on both sides, paying attention to brown the fat. Remove and set aside.
Throw the vegetables into the pan and cook for 4-5 minutes, stirring regularly.
Place the pork chops on top of the vegetables.
Place a pineapple ring on top of each pork chop, then pour over the sauce and transfer to the oven and cook for 10-12 minutes at 200°C or 390°F. Or until the thickest part of the pork reaches 60°C or 140°F. Allow the pork to rest for 3-4 minutes before serving.