What is Butterfish?
Butterfish is a category of rich, oily white-fleshed fish prepared through frying, baking, grilling, or steaming, valued for its exceptionally high omega-3 fatty acid content, melt-in-mouth texture, and delicate flavor that absorbs marinades and sauces beautifully. The name “butterfish” applies to several distinct species worldwide — the American butterfish (Peprilus triacanthus), the Japanese sablefish or “black cod” sold as butterfish in Hawaii, the Australian butterfish (Scatophagus argus), and the Indian Pomfret family — all sharing the common characteristic of unusually buttery, fatty flesh that distinguishes them from leaner white fish. The fish family produces signature dishes across American, Japanese, Hawaiian, Indian, and Mediterranean cuisines.
Popular Recipes and Regional Variations
The Japanese-Hawaiian Miso-Marinated Butterfish (Misoyaki) is the most internationally celebrated preparation, made by marinating sablefish (black cod) fillets in a sweet white miso-mirin-sake mixture for 24–72 hours, then broiling until deeply caramelized. The dish was popularized internationally by chef Nobu Matsuhisa as the iconic “Black Cod Miso” at his Nobu restaurants worldwide. The American Northeast Pan-Fried Butterfish uses Atlantic butterfish dredged in seasoned flour and pan-fried in butter until crisp.
The Indian Pomfret Curry uses butterfish-family pomfret simmered in a coconut-tamarind curry, popular along the Konkan and Goan coasts. Tandoori Pomfret is the dry-grilled version marinated in yogurt and spices. The Chinese Steamed Butterfish with ginger and scallion features whole fish steamed and finished with hot oil and soy sauce. The Korean Galchi Jorim uses cutlassfish (sometimes called butterfish) braised in spicy gochujang sauce.
Modern variations include Cedar-Plank Butterfish, a Pacific Northwest preparation with smoky cedar aromatics; Butterfish Sashimi, served raw at Japanese restaurants; Smoked Butterfish, popular in Hawaiian and Caribbean cuisine; and Sous-Vide Butterfish, the modern restaurant technique that captures perfect doneness through low-temperature precision cooking. The dish category is closely associated with luxury Japanese-fusion fine dining due to high price points and the buttery texture that pairs beautifully with sweet-savory sauces.
Preparation Technology
For Miso-Marinated Butterfish (the iconic Nobu-style preparation), select 4 fillets of black cod (sablefish) 150 g each, with skin on. The skin protects the delicate flesh during the long broil and develops appealing crispness. Pat the fillets completely dry with paper towels — surface moisture prevents proper miso adhesion and inhibits the deep caramelization that defines the dish.
Prepare the marinade by combining 100 ml sake and 100 ml mirin in a saucepan and bringing to a boil for 30 seconds to evaporate the alcohol. Remove from heat, whisk in 250 g white miso paste (saikyo miso preferred for sweetness) and 200 g granulated sugar until completely smooth. Cool to room temperature. Rub the marinade generously over both sides of each fillet, place in a non-reactive dish, cover, and refrigerate for 48–72 hours — the long marination is essential for proper flavor penetration and the signature caramelization color.
Remove the fillets from the marinade and gently scrape off most of the miso paste — leave only a thin coating, as residual paste burns quickly under high heat. Pat the fillet surface lightly with paper towels. Position the broiler rack 15 cm from the heating element and preheat the broiler to high (260°C). Place the fillets skin-side down on a foil-lined baking sheet.
Broil 6–8 minutes, watching carefully — the fish is done when the surface is deeply caramelized, almost mahogany, with charred edges and the flesh easily flakes with a fork at the thickest point (internal temperature 60°C). Some surface charring is desirable; complete blackening indicates excessive heat or time. Transfer immediately to warm plates, garnish with pickled ginger and a daikon radish sprig, and serve with steamed short-grain rice and a small dish of soy sauce. The flesh should be silky, almost custard-like, with deep umami sweetness from the long miso marination.
Tips and Common Mistakes
Skipping the long 48–72 hour marination produces inferior results lacking the deep flavor penetration that defines authentic Misoyaki butterfish. Even 24 hours produces noticeably weaker flavor than the traditional 72-hour marinade — the miso paste needs extended time to penetrate the fatty flesh and develop the signature umami complexity. Plan ahead and start the marinade 3 days before serving for proper restaurant-quality results.
Failing to scrape off most of the miso paste before broiling produces burnt, bitter surfaces that ruin the entire dish. The thick miso marinade contains abundant sugars that burn rapidly under broiler heat — leaving the paste on creates a charcoal-black crust hiding raw fish underneath. Scrape the paste back to a thin coating only, allowing the marinade flavors to remain in the flesh while preventing surface combustion during the high-heat broil.
Using the wrong species fundamentally changes the dish. Real “Misoyaki butterfish” requires Pacific sablefish (Anoplopoma fimbria), often labeled “black cod” or simply “butterfish” at Hawaiian and Japanese markets. Atlantic butterfish, Australian butterfish, and Indian pomfret all have different flavor profiles and texture. Substituting other oily fish like Chilean sea bass produces a workable approximation, while leaner fish like halibut or cod produce dramatically inferior, drier results lacking the buttery character.
History and Cultural Significance
Butterfish preparations have existed in Japanese cuisine for centuries, with the miso-marinating technique called saikyo-yaki originating in the imperial city of Kyoto where saikyo white miso has been produced for over 200 years. According to Wikipedia’s account of sablefish, the Pacific sablefish became central to Japanese-American cuisine in the 20th century, with Hawaiian Japanese-American fishermen developing the modern miso-marinated preparation that combines traditional saikyo-yaki technique with Pacific fish species. The dish achieved international fame after chef Nobu Matsuhisa adapted the preparation for his fine-dining restaurants beginning in the 1980s.
The American butterfish (Peprilus triacanthus) has been a staple of Northeastern American coastal cuisine since colonial times, harvested from Long Island Sound through Cape Cod and prepared by simple pan-frying or broiling. Indian pomfret has been central to Goan, Konkani, and Bengali coastal cooking for centuries, with regional curry traditions developing alongside Portuguese, Mughal, and Bengali culinary influences over the past 500 years.
Today butterfish-family preparations enjoy global culinary prominence, particularly through the Nobu restaurant empire’s signature Black Cod Miso, which has become one of the most copied dishes in international fine dining. Modern Hawaiian and Pacific Northwest restaurants serve sablefish prominently, while Indian restaurants worldwide feature pomfret as a premium menu item. Sustainability concerns have driven the rise of certified-sustainable Alaskan sablefish fisheries, and chef-driven restaurants increasingly source butterfish-family species from sustainable producers as awareness of overfishing has grown across the industry.