1. Place the mince, pepper, onion, garlic, chillies, coriander seeds, cumin seeds and coriander in a mixing bowl and mix until well combined. Season and place in the fridge for 30 minutes.
2. Shape even-sized balls out of the mince mixture and place it on a baking tray lined with baking paper.
3. SAUCE: Put all the ingredients for the sauce in a saucepan over medium heat and allow to simmer for 20 minutes or until thickened.