Put a little oil into a pan and add the curry paste
Heat at medium, then add 1/2 a glass of water, dissolve paste
Bring to boil, add another half a glass of water
Simmer until red patches of oil develop, then add the sliced chicken
Add the sliced green veg
Add fish sauce (or soy sauce) and sugar to taste (initially two tspns fish sauce, one of sugar)
Increase heat, when chicken is thoroughly cooked add coconut milk
Cook for a further 2 minutes