* onion
  * garlic
  * butter
  * orange juice/rind
  * cider vinegar
  * raisins
  * molasses
  * ketchup
  * chilli powder
  * crushed red pepper flakes
  * dijon mustard
  * worcestershire sauce
  * cloves
  * honey
  * beer
  * whole roma tomatoes
  * oregano
  * brown sugar
  * liquid smoke