Beer B Cue Ale Steaks

½ cup chopped onion (1 medium) 1 tablespoon vegetable oil ½ cup pale ale ½ cup chili sauce ¼ cup packed brown sugar 2 tablespoon yellow mustard 1 tablespoon red wine vinegar 1 tablespoon worcestershire sauce ½ teaspoon salt ½ teaspoon bottled hot pepper sauce