2tbspFresh basilShredded for sauce plus extra for garnish
Instructions
Place cod in a baking dish. Zest one orange and the lemon over the fish, squeeze their juice on top, and drizzle with 1/4 cup olive oil. Cover and let marinate for at least 1 hour in the refrigerator.
Preheat oven to 250°F (120°C). Heat the remaining 1/4 cup olive oil in an oven-safe sauté pan over medium heat until shimmering but not smoking.
Remove cod from marinade (reserve the marinade), season both sides with salt and pepper, and carefully place filets in the hot pan. Pan-fry over medium heat for 3-4 minutes on each side, or until a golden crust forms. Transfer the pan to the preheated oven to keep the fish warm while you make the sauce (about 5 minutes).
In another small pan over medium heat, melt 2 tbsp butter. Add 1 tsp light brown sugar, the reserved marinade, and the juice from the remaining orange slices. Bring to a boil, then reduce heat and simmer until the sauce reduces by about half and slightly thickens (about 4-6 minutes).
Stir in shredded basil and the remaining 1 tbsp butter until melted and the sauce is glossy. Taste and adjust salt and pepper if needed.
Remove cod from the oven, spoon the citrus basil butter sauce generously over each filet, and garnish with fresh basil leaves and orange slices.
Notes
Store leftovers in an airtight container for up to 2 days in the refrigerator. Reheat gently in a 300°F oven.