8 canned chipotles in adobo sauce
2 tablespoons peanut oil
1 medium onion
4 garlic cloves
28 ounces ketchup
1 tablespoon chile powder
1/2 tablespoon cumin
1/3 cup malt vinegar
1/4 cup Worcestershire sauce
1/4 cup yellow mustard
6 ounces Oktoberfest or bock beer
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