In a searing slow cooker (or fry pan) sear the onion and chorizo in oil for approx 5-10mins
In slow cooker combine these with all other listed ingredients except the olives
Cook on low for 5hrs
Add olive and allow to cook for additional 30mins
Serve with couscous
Notes
This recipe, inspired by similar oven recipes, is a little spicy so for the little people in our house we just left the chorizo and olives off their plates when serving