Mix the egg white and cornflour in a bowl and marinate the chicken in this. Heat the sunflower oil in a heavy-based saucepan or wok and add the chicken.
Then throw in the onion, ginger, garlic paste and the green chillies and stir-fry for a few seconds. Tip in the turmeric powder and season.
Stir in the desiccated coconut, heat through and serve at once.