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1
Preheat the oven to 425F.
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2
Toss the vegetables with 1 tablespoon of the olive oil in a large roasting pan.
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3
Stick 4 rosemary pieces into the vegetables and scatter with a three-finger pinch of sel gris and a two-finger pinch of pepper.
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4
Sprinkle the interior cavity of the chicken with a three-finger pinch of salt and a two-finger pinch of pepper.
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5
Coat the outside of the chicken with the remaining olive oil and place the chicken, breast side down, on top of the vegetables.
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6
Roast for 45 minutes.
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7
Reduce the oven temperature to 400F, and turn the chicken breast side up.
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8
Its easiest to use large tongs with one arm inserted into the chicken cavity and the other gripping the outside of the bird.
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9
Roast for 30 minutes more, or until the skin is golden brown and a thermometer inserted into the thickest part of the thigh registers 160F.
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10
Remove the chicken to a carving board and let rest for 5 minutes before carving, allowing the internal temperature to come to 165F.
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11
Carve the chicken and arrange in the center of a serving platter.
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12
Remove and discard the rosemary branches from the roasted vegetables and, using a slotted spoon, arrange the vegetables around the chicken.
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13
Skim off excess fat from the juices in the roasting pan, leaving just a film of fat.
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14
Place the roasting pan on a burner over medium-high heat.
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15
Add the leaves of the remaining rosemary and the vermouth to the drippings in the pan.
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16
Bring to a boil, then spoon over the chicken and vegetables.
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17
Scatter the remaining pinches of salt and pepper over all and serve.