This recipe for seared Pacific halibut with brown butter ponzu sauce is equal parts cozy and elevated. The fish is conveniently cooked from frozen, making this dish a great last-minute dinner option, too! The frozen Pacific halibut is gently seared and roasted in a generous amount of brown butter, which keeps the fish juicy and tender as it cooks.
How to Make Ponzu Sauce
Ponzu is a bright, citrusy, and salty Japanese sauce. Its tart, acidic flavor balances the nutty, caramelized flavor of brown butter for a zesty, satisfying bite. Ponzu sauce is very easy to make at home, if you have a few basic Japanese pantry staples in your kitchen — soy sauce, mirin, and rice wine vinegar. These ingredients are simply combined with a mix of citrus juices to create a thin, pourable sauce.
How to Make Brown Butter
For the brown butter sauce, you'll cook regular butter in a pan over medium heat for about 10 minutes. Over time, the milk solids in the butter will start to turn golden brown, caramelizing gradually and developing a complex, toasty flavor. The recipe below makes enough brown butter for several uses. You can store any extra brown butter in the freezer for up to 3 months, or in the refrigerator in a covered container for up to 2 weeks.