Roast Lemon Chicken with Shallots and PotatoesNotes: Large roasting chickens tend to have more flavor than smaller "fryers"; many meat departments will order them. Kosher chickens larger than 4 pounds can be difficult to find. You can order them online, or you can roast two 3- to 3 1/2-pound chickens side by side in a large roasting pan (in step 3, divide half the spice mixture evenly between the two chickens).