Grilled Halibut with Lemon Caper Vinaigrette

Bahan-bahan (4 porsi)

• 2 tablespoons freshly squeezed lemon juice ((about 1 lemon))
• 1 tablespoon extra-virgin olive oil
• 2 teaspoons finely chopped shallot
• 2 teaspoons chopped capers
• ¼ teaspoon kosher salt
• ¼ teaspoon freshly ground black pepper
• Four 6-ounce halibut fillets
• ½ teaspoon kosher salt
• 2 tablespoons chopped fresh chives