This is a simple recipe that combines three complimentary ingredients: leeks, citrus, and fish. The recipe is light, fresh, and uncomplicated, perfect for a weeknight supper.
|Make a compound butter by combining the butter, zest, chopped chives, and pinch of salt in a small bowl. Stir the mixture with a spatula until ingredients are evenly distributed. Shape the butter into a log and chill in the fridge until firm, about half an hour.Preheat the oven to 350 degrees Fahrenheit. Prepare the leeks: Take off their roots and coarse green tops. Slice the leeks almost in two with a lengthwise cut from the top end to within two inches of the root base. Submerge the leeks in water and agitate them to remove any dirt. Simmer the leeks in a separate (large) pot of water until just tender, about 4 minutes. Drain the leeks and finish the lengthwise cut to divide the leeks into two halves.
Butter one larger casserole dish and place the leeks on the bottom. Drizzle with 1 tablespoon olive oil and the melted butter. Season the leeks with a couple pinches of salt. Place each rockfish fillet atop its own bed of leeks. Pour orange juice over the fish along with the other tablespoon olive oil. Season the fish with a couple pinches of salt and a bit of freshly ground white pepper.
Roast the fish in the oven for 10-15 minutes, until the rockfish is cooked through and flakes easily with a fork. Remove the halibut and leeks from the oven and serve immediately with a slice of citrus-chive butter on top.