Rinse the rice in a sieve under cold running water until the water runs clear, then drain well. Place the water and rice in a pan, bring to the boil, leave covered on a switched-off hob for approx. 15 mins. until fully absorbed; do not remove the lid. Separate the rice with a fork.
Sauté the onion, garlic and ginger in the ghee. Add the spices and cook briefly. Add the chicken, mix well. Cook the meat over a medium heat for approx. 5 mins., stirring occasionally, season with salt and pepper. Mix the boiled rice with the meat, plate up, garnish with raisins and pistachios.