Heat oil in a large saucepan over medium-high heat. Add chillies, garlic and ginger. Cook, stirring, for 1 minute or until aromatic. Add chicken and onions. Stir until well combined. Cook, stirring with a wooden spoon, for 5 to 7 minutes or until chicken is cooked through.
Add coconut cream, stock, fish sauce, brown sugar, 2 tablespoons lime juice and lime leaves. Stir until well combined. Bring to the boil. Reduce heat to medium-low. Cook, uncovered, for 5 minutes or until lime leaves are tender.
Ladle broth into serving bowls. Top with coriander and serve.
