Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   3      canned        chipotles in adobo, stems removed -- chopped
   2      teaspoons     New Mexican chile powder
   2      tablespoons   adobo sauce
   1      large         onion -- chopped
   2      cloves        garlic -- chopped
   1      tablespoon    vegetable oil
     1/4  pound         slab bacon, cut into 1/2 inch pieces
     1/2  cup           ketchup
     1/2  cup           beer or water
     1/4  cup           dark brown sugar
   1      teaspoon      dry mustard
   3      cups          cooked great northern beans

Preparation:

Sauté chipotles, onion, and garlic in oil until soft. Combine with other ingredients, and mix resulting sauce into the beans. Bake at 325F for 2 hours, adding water if beans get too dry.