Heat up large saucepan with oil, and add onions and garlic.
Stir occasionally for about 2-3 minutes until onion is translucent.
Add Berbere spice
Add cubed potatoes, stir and sauté for about 2-3 more minutes.
Add stock / water if necessary
Next add chickpeas, cayenne pepper , green onion, coconut milk, stock powder (if using) and stock.
Bring to a boil and let it simmer until sauce thickens (between 10 & 20 minutes). Chuck in some coriander or parsley , adjust for salt, pepper and consistency.
Serve warm.