CHOP CHUNKY !
Chop the sweet potato, tomato's, red onion and stalks of coriander and add them to slow cooker.
Grate ginger and mince garlic, add to slow cooker.
Add the curry paste, chick peas and coconut milk. (add chili if you have chosen to)
Cook on low for 4.5 hours
Now time for the barley. Add one cup of pearl barley and 1/2 cup stock.
Let it cook for a bit longer, to 7 hours total.
Right at the end, add the rest of your chopped coriander. (if not moist enough, just add a splash of water/stock)