- 1 1/4-pound skinless black cod fillet
 - 4 teaspoons fresh lime juice, divided
 - 1 tablespoon olive oil
 - 1 1/2 cups chopped leek (white and pale green parts only; about 1 large)
 - 2 garlic cloves, minced
 - 1/2 cup canned unsweetened coconut milk
 - 1 teaspoon (packed) grated lime peel
 - 1/3 cup chopped fresh cilantro
 
- Preheat oven to 350°F. Sprinkle fish with salt and pepper; place in 11x7x2-inch glass baking dish. Drizzle with 1 1/2 teaspoons lime juice. Heat oil in large skillet over medium heat. Add leek and garlic; sauté 7 minutes. Add coconut milk and remaining lime juice; boil until thick, about 4 minutes. Stir in lime peel.
 - Spoon sauce over fish. Bake until fish is just opaque in center, about 20 minutes. Transfer to platter. Whisk juices in baking dish. Spoon around fish; top with cilantro.