Brown chicken, chorizo and onion before adding to slow cooker with remaining ingredients, including the contents of the jar, rinsed out with the chicken stock.
Stir to combine.
Cook on high for 2 ½ – 3 hours or low for 4 – 5 hours.
Serve with mashed potato, herbed couscous, pasta or rice and top with Greek yoghurt and flat leaf parsley.