Note-The original recipe calls for thickening the sauce at the end but I don't bother. If you want to just add some water mixed with cornstarch (probably about 1/2 cup water with a couple of tablespoons of cornstarch) at the end, turn the crock pot on high, and cook until it's thickened a little.
4 pork chops
1 large onion, cut up
1 stalk celery, cut up (if you don't have this just leave it out-I almost never have celery on hand)
1/4 cup ketchup
1 can diced tomatoes
2 tbs brown sugar
2 tbs apple cider vinegar
2 tbs Worcestershire sauce (I use Angostura brand)
1 tbs lemon juice
Put the pork chops in the crock pot. Put the onions and celery on top of them. Mix the rest of the ingredients and pour over the top. Cook on high for an hour or so and then low for about 5 hours. Serve over rice.