First day:

4 to 5 lb. Boston butt roast
1 onion sliced and put on bottom of pot
Put roast in pot
1 onion sliced and put on top of roast
5 to 6 whole cloves put on top of roast
Put in 2 cups of water
Cook on low 12 hours

Next day:

Take meat out, take bone out and get out all fat
Take everything out of pot and wash pot
Put meat back in pot
Add 1 chopped onion
Mix in 1 (16 ounce) bottle of BBQ sauce
Cook on low for 3 hours

BBQ freezes well.