Recipe: Seared Bonito with Ponzu Sauce

Katsuo no Tataki, a classic Japanese dish, highlights the delicate, smoky flavours of seared bonito paired with tangy ponzu sauce. This dish, originating from Kōchi Prefecture, showcases how a quick sear and quality ingredients create a simple yet refined plate.

At Dawson's Oyster Supplies, we’re proud to stock sashimi-grade bonito, locally caught in Port Stephens!

Ingredients

• 2 thick fillets of bonito (about 200–250g each)
• Salt and cracked black pepper
• 2 tbsp vegetable oil or sesame oil

Ponzu Sauce (Quick Version):

• 3 tbsp soy sauce
• 3 tbsp fresh lemon juice
• 1 tbsp mirin (or ½ tbsp sugar as a substitute)
• 1 tbsp dashi stock (optional)

Method

1. To make the Ponzu Sauce: In a small bowl, mix soy sauce, lemon juice, mirin, and dashi stock (if using). Stir well and set aside.
2. Using a sharp knife, slice down the middle, removing the row of bones, leaving two boneless fillets
3. Pat the bonito fillets dry with a paper towel. Season lightly with salt and pepper.
4. Heat oil in a pan over high heat. Quickly sear each fillet for about 20–30 seconds on each side to achieve a charred exterior while keeping the inside rare.
5. Slice the seared bonito into 1 cm thick pieces.
6. Arrange slices on a platter, drizzle with ponzu sauce.

About Bonito (Katsuo)

Bonito, a member of the tuna family, is known for its firm, oily flesh and rich flavour. Popular in Japan, bonito is widely used for making dashi stock or served fresh as sashimi or tataki. In this dish, the light sear caramelizes the fish’s surface while leaving the inside tender and moist. Katsuo no Tataki originated in Kōchi Prefecture.

Ponzu Sauce: A Japanese Staple

Ponzu sauce, pairs beautifully with raw or lightly cooked fish. While traditional ponzu relies on rare Japanese citrus, a quick homemade version with lemon juice delivers similar balance and vibrancy.

Tasting Notes and Pairings

Seared bonito has a smoky, umami-packed flavour that pairs beautifully with the bright tanginess of ponzu sauce. Serve with a side of steamed rice, pickled vegetables, or a crisp salad for a well-rounded meal.

Whether you're an experienced cook or new to preparing sashimi-style dishes, this recipe is an easy start and the perfect way to bring a taste of Japan to your table.