2 to 3 pound boneless pork loin (see note below)
1 16 ounce bottle of your favorite flavored barbecue sauce
8 ounce can crushed pineapple (juice and all)
1/2 teaspoon liquid smoke
Stir the barbecue sauce, undrained pineapple and liquid smoke together and pour it over the raw pork loin (in the Crockpot).
Cook on LOW for five to six hours (I cook it for 6 hours). Turning the meat over once or twice during that time.
Just before you are ready to eat. Remove the meat and thicken the sauce (I use a cornstarch slurry), then put the pork back in the sauce to keep it hot till it's time to eat.
This sauce is absolutely delicious. Even my picky-picky husband gave it a thumbs up (twice!!) and it could NOT be easier.
NOTE: I'm sure this would work with a pork tenderloin, but I haven't tried it so I can't recommend a cooking time.