Preparation

• Combine 1-1/4 cups of the cilantro with the coconut milk, lemongrass, basil, chiles, garlic, salt, brown sugar, pepper, and coriander in a food processor or blender and purée until smooth. Arrange the chicken breasts in a nonreactive baking dish or other vessel large enough to accommodate them in a snug single layer. Pour the marinade over the breasts and turn to coat them well. Cover and refrigerate for at least 2 hours and up to 1 day.
• Heat a gas grill to medium high or prepare a medium-hot charcoal fire. Grill the chicken (covered on a gas grill) until it has good grill marks on the first side, 4 to 5 minutes. Flip the chicken (cover a gas grill) and continue to cook until firm to the touch and completely cooked through (check by making a slice into one of the thicker breasts), 5 to 6 more minutes. Transfer to a platter and let rest for 5 minutes. Sprinkle with the remaining 1/4 cup cilantro and serve with the lime wedges.

Though these breasts are great served hot off the grill, they’re also fine served cold in the coming days, either plain or sliced atop a salad.