Kotta Pilafi (Chicken Pilaf)

Yield:	6 Servings
Categories:	Greek, Poultry

6		Chicken breasts (about 3 pounds)
1/4	c	Butter
1	md	Onion, finely chopped
1 1/2	c	Canned tomatoes
2	c	Water
1	ts	Ground cinnamon
		Salt and pepper
1	c	Uncooked rice
		Dairy sour cream