Miso and Soy Chilean Sea Bass
Miso and Soy Chilean Sea Bass is rich, buttery, savory, and slightly sweet.A miso-soy marinade gives the fish a deep umami flavor.Ginger and garlic add freshness and aromatic warmth.Baking creates tender fish with a beautifully caramelized glaze.It pairs wonderfully with steamed rice and fresh vegetables.This restaurant-style seafood dish is easy enough for a weeknight dinner.
Ingredients
For the Chilean Sea Bass
- 4 Chilean sea bass fillets, about 6 ounces each
- 1 tablespoon neutral cooking oil
- 1 tablespoon sesame seeds, for garnish
- 2 green onions, thinly sliced
- Fresh cilantro or microgreens, optional
- Lemon or lime wedges, for serving
For the Miso-Soy Marinade
- 1/4 cup white miso paste
- 3 tablespoons low-sodium soy sauce
- 2 tablespoons mirin
- 1 tablespoon rice vinegar
- 1 tablespoon rice vinegar
- 1 teaspoon freshly grated ginger
- 2 cloves garlic, finely minced
- 1 teaspoon fresh lime juice
- 1 teaspoon water, if needed to thin the marinade
Instructions
Prepare the Marinade
- In a medium bowl, combine the white miso paste, soy sauce, mirin, rice vinegar, honey, sesame oil, grated ginger, minced garlic, and lime juice.Whisk until the mixture becomes smooth and well combined. If the marinade is very thick, add about 1 teaspoon of water to make it easier to spread.
Prepare the Fish
- Pat the Chilean sea bass fillets dry with paper towels. Removing excess moisture helps the marinade adhere to the fish and encourages better browning during cooking.Place the fillets in a shallow glass or ceramic dish or a food-safe resealable bag.
Marinate
- Pour the miso-soy marinade over the fish, making sure all sides are coated.Cover and refrigerate for at least 30 minutes. For deeper flavor, marinate for several hours.Before cooking, gently remove excess marinade from the surface of the fish. Leaving a thin coating is ideal, but too much marinade can burn under high heat because of its sugar content.
Preheat the Oven
- Preheat your oven to 400°F (200°C).Line a baking sheet with parchment paper or lightly oil an oven-safe baking dish.
Bake the Sea Bass
- Place the marinated sea bass fillets on the prepared baking sheet, skin-side down if the fillets have skin.Bake for approximately 12–18 minutes, depending on the thickness of the fillets.The fish should be opaque and should separate easily with a fork. For the most accurate result, use a food thermometer and cook seafood to the appropriate safe internal temperature.
Caramelize the Glaze
- For a more restaurant-style finish, switch the oven to broil during the final 1–2 minutes of cooking.Watch the fish carefully because the miso and honey can caramelize quickly.The surface should become glossy, golden brown, and lightly caramelized without becoming burnt.
Garnish
- Remove the fish from the oven and allow it to rest for a couple of minutes.Sprinkle with sesame seeds and sliced green onions. Add cilantro or microgreens if desired.Serve immediately with steamed rice, vegetables, or your favorite Asian-inspired side dishes.
Notes
- Use white miso: White miso provides a mild, slightly sweet flavor that works especially well with delicate fish.
- Don't over-marinate: Very long marination can change the texture of seafood, so several hours is generally sufficient.
- Remove excess glaze: Too much marinade on the surface can burn during broiling.
- Watch the broiler: The glaze contains sweet ingredients and can darken very quickly.
- Use fresh fish: Fresh, properly refrigerated sea bass provides the best texture and flavor.
- Check thickness: Cooking time varies considerably depending on how thick the fillets are.
- Pat the fish dry first: This helps the marinade cling better to the surface.