This recipe is from eons ago... I found it when cleaning up recently, scrawled on the front of an old green-bar printout of a Pascal compilation attempt from 1981! I'm saving the recipe online and tossing out the old paper. :)

BBQ sauce for Pork

1/2 large onion, chopped
1 clove garlic, crushed
Olive oil
1 cup ketchup
1/2 cup water
1/4 cup dark brown sugar, firmly packed
3 tbls Worchestershire sauce
2 tspns. prepared mustard
1 tspn thyme
1 lemon, thinly sliced

Sautee the onions and garlic in olive oil until they are soft and transparent. Then add all the other ingredients and simmer for 5 minutes. The "white" of the lemon rind will gradually add a bitterbite to the sauce over a period of a couple of hours. Taste it occasionally and remove the lemon when the balance of sweet/tangy and bitter is to your liking. If the prepared ingredients you choose have little or no salt, you might find you'd like to add a little salt at this point.

Mix the sauce with a shredded pork roast in proportions that yield the consistency you want and simmer for another 5 minutes to marry the flavors.