Step 1

To prepare buttermilk brine: Combine buttermilk, sugar, shallots, garlic, salt, oregano, thyme, rosemary, Worcestershire sauce and pepper in a bowl. Stir until the sugar and salt dissolve.

Step 2

To marinate chicken: Place chicken in a sealable gallon-size plastic bag. Pour in the brine mixture, seal and refrigerate for at least 4 hours and up to 12 hours.

Step 3

To prepare chicken: Remove the chicken from the brine (discard the brine) and pat dry with paper towels. Rub 1 tablespoon oil over the chicken and let stand at room temperature for at least 10 minutes and up to 30 minutes.

Step 4

Meanwhile, preheat a grill to 400 degrees F or build a fire in a charcoal grill and let it burn down to medium heat (about 400 degrees F).

Step 5

Oil the grill rack (see Tips). Grill the chicken with the lid closed, turning once, until an instant-read thermometer inserted into the thickest portion of the chicken registers 165 degrees F, 28 to 30 minutes total for breast halves; 32 to 36 minutes for thighs and drumsticks.