Rwandan chicken casserole

I have previously mentioned Share: The Cookbook That Celebrates Our Common Humanity, sales of which support Women for Women International.  If you are looking for a cookbook that is both beautiful and has something for everyone, this is it, and by buying it, you are supporting a very worthy cause. 

I have been enjoying cooking various recipes out of this book, and recently, I made Rwandan chicken casserole from p133 of the book.  This is a wonderful spicy casserole with a thick, rich sauce - just the kind of meal I love in the winter.  There are various very similar recipes on the Web, but to make this casserole, the recipe is as follows:

3 tbspns vegetable oil
1.5kg chicken pieces
1 thinly sliced onion
3 chopped tomatoes
2 sliced sticks celery
1 minced chilli
250-300ml chicken stock
salt and pepper

Brown the chicken in the hot oil in a large, deep fry pan.  Remove the chicken from the pan and set aside.  Add the onion to the pan and cook until soft and browned.  Return the chicken to the pan with the tomatoes, celery, chilli and salt and pepper to taste. Add the stock, bring the liquid to the boil, then reduce the heat and simmer, covering the pan, for  30-40 minutes until the chicken is cooked through.  Serve the casserole over rice (or in my case, cous cous).