Step 1

Heat a large non-stick frying pan over medium heat. Toast rice in pan, tossing, 2-3 minutes, or until golden brown. Place in a food processor (or use a mortar and pestle) and pulse until coarsely ground.

Step 2

Heat oil in the pan and brown mince, 3-4 minutes. Add garlic and coriander roots and stems. Cook, stirring, a further 2-3 minutes. Add fish sauce, lime juice and brown sugar.

Step 3

Remove pan from the heat and stir through green onions and half the coriander leaves, mint leaves and chilli (if using). Sprinkle with toasted rice and remaining coriander.

Step 4

Serve immediately alongside a platter of cos lettuce leaves. Serve with steamed jasmine rice and lime wedges, if desired.