Heat the oil in a casserole dish and add the chicken, breast-side down. Brown and turn until golden all over. Remove and leave to one side. Add the shallots, garlic, lemongrass, coriander stalks, dried chilli and mushrooms. Sauté for about 5 minutes until it starts to caramelise. Return the chicken to the casserole dish and pour in the wine and water. Cover and simmer for 40-45 minutes until the chicken is cooked.