Bubli's Chicken Curry

2 T oil
3 onions, sliced
10 cloves garlic, minced
2 t ground coriander
1 t tumeric
1 t cayenne (I usually do about half of this)
4 plum tomatoes
1 t salt
3-4 lb chicken, cut into serving pieces (I usually use thighs and/or drumsticks)
1-2 C water
1-2 bird chilis, sliced (optional)

Heat the oil over high heat. Sear the chicken in oil. Add more oil and heat. Add the onions and garlic and cook until softened. Add the coriander, tumeric, cayenne and salt and cook until fragrant. Add the tomatoes and cook for a few minutes. Add the chicken, water and chilis. Bring to a boil, cover and cook over low heat until the chicken in tender.