This is one my favorite chicken recipes which my mom used to make. I love eat it "taghmees", means with arabic bread using fingers to dip the bread in the sauce and pick the chichen bites, and enjoy it to the max... Summac is also used in this recipe, like in Musakhkhan. It's a spice made from the ground dried berries of a bush that grows wild throughout the Middle East and is sold in Middle Eastern markets. Sumac has a sour and vaguely lemony taste.
You can place small potatoes to cook with the chicken, will be great as well.