Marinate the chicken breast fillet in honey, garlic, ginger, soy sauce and lemon juice for an hour.
Heat some oil in a wok and fry the leek for 5 minutes, stirring constantly. Take the leek out of the wok and heat some more oil. Sear the chicken breast fillet with the marinade in the wok until the liquid has reduced. Add the fried leek and deglaze with the coconut milk. Mix in the curry paste and season the dish with salt, pepper and coriander. Simmer for another 5 minutes and, if necessary, bind with a little cornstarch.