Beer-Braised Pork and Black Bean Soup

2 bottles of beer (I like a darker beer)
1 small can chopped chipotle chiles
1 teaspoon ground cumin
1 medium brown onion, finely chopped
1 pound dried black beans, rinsed
boneless pork butt (about 2 lbs)
salt and pepper to taste

1. Put all ingredients in slow cooker on low for at least 7 hours.

Serve with sour cream, salsa, cheese, lime slices, fresh cilantro.