Mix together salt, pepper, brown sugar and garlic.
Place chicken thighs in bottom of slow cooker.
Sprinkle each piece of meat with the sugar/spice mixture.
Pour chicken broth around the chicken, so you don't knock off the sugar and spices mixture.
Cook on low for 6 hours.
Once they're cooked, baste with sauce over the top, to make sure that they get good flavor.
Optional step: Turn broiler on high broil, and put these under the broiler on a cookie sheet for about 3-5 minutes, until they become a little crispy and browned on the edges. Be sure to spoon some sauce over the top before putting them under the broiler.
Sprinkle dried parsley over the top.