Zuni Crockpot Stew

1 large onion, chopped
1 (2 to 2 1/2 pound) pork butt, trimmed of all fat
1/2 cup water
1 (15 ounce) can garbanzo beans
1/2 cup fresh green chile, chopped
Salt and pepper to taste

Place onion, pork and water in crock pot on LOW in the morning.

When almost ready to serve (about 8 hours later), break up meat and remove bones and fat. Add drained garbanzos and chiles. Turn crock pot to HIGH and heat through. Thicken stew with 1 tablespoon flour mixed with water if desired. Season to taste.