Place onion, garlic, ginger & chilli (optional) into TM bowl and chop for 3 seconds on speed 7.
Add coriander, cumin, turmeric and oil and sauté for 3 minutes at 100 degrees on speed 1 with the MC off.
Add sweet potato and chop for 10 seconds on speed 6.
Add kaffir lime leaves, coconut milk, water & stock and cook for 20 minutes at 100 degrees on speed 1.
Remove kaffir lime leaves.
Blend for 30 seconds by slowly going from speed 1 to speed 9.
Garnish with fresh coriander & a dollop of capsicum jam if desired.