I make (IMHO) a really good crock-pot "pulled pork." I start by sauteing a bunch of onion and garlic, for a nice base. Never shy with those. I'll usually saute the pork, too, just to get it started and to add some color. I'll then cook the pork in the crockpot with a whole bunch of chopped apples (like, four or five apples, don't even bother removing the skin) and a ton of apple cider vinegar. Add a little store-bought BBQ sauce, salt, pepper.
Right before the pork starts to fall apart, I'll take it out and set it aside. Then, everything in the crockpot gets strained. I push it all through a fine-mesh strainer to get rid of all of the apple skins and anything else like that. Then, add back the pork and let it finish cooking until it starts falling apart.
Cooking the cider that long, it loses a lot of the real aggressive tang.
I know it's not a traditional way to make pulled pork, but it's pretty easy and it's damn tasty.