1. Preheat the oven to 400 degrees.

2. Take the chicken out of it's trappings, remove giblets, rinse thoroughly, pat semi-dry, cover with a generous amount of salt, spread the butter over it (you can use your hand). Smear a little butter on the bottom of the baking pan and place in the center of the oven, breast-side up. Add a little rosemary (if you like). Cook for about 65 minutes, assuming it's an average-sized chicken. For anything over 3.5 pounds, add about 8-10 minutes per pound.

3. Chop up the garlic, onion, potatoes and carrots. After the chicken has been in the oven about 20 minutes, take it out and add a cup of water to the pan. Mix up all the vegetables and scatter them around the chicken. Drizzle olive oil over the veggies.