Grilled Salmon With Lime Butter

From Gourmet [1]

Salmon:
6 (6-oz) pieces center-cut salmon fillet (about 1 inch thick) with skin
1 1/2 teaspoons finely grated fresh lime zest

Lime Butter:
1 large garlic clove, chopped
1/4 cup fresh lime juice
1 teaspoon salt
1/2 teaspoon black pepper
1 stick (1/2 cup) unsalted butter, melted

Make lime butter: Purée garlic with lime juice, salt, and pepper in a blender until smooth. With motor running, add melted butter and blend until emulsified, about 30 seconds.
Make salmon: Prepare grill for cooking over medium-hot charcoal (moderate heat for gas).
Season salmon all over with salt and pepper, then grill, flesh sides down, on lightly oiled grill rack (covered only if using gas grill) 4 minutes. Turn fillets over and grill (covered only if using gas grill) until just cooked through, 4 to 6 minutes more. Sprinkle fillets with zest and top each with 1 tablespoon lime butter sauce.

Serves 6.