Negitoro Don (Mashed Tuna Sashimi Bowl)
This simple rice bowl made with mashed tuna is quick, easy and satisfying, the perfect dish for a week-night dinner. I also include my own delicious homemade negitoro don sauce that you can whip up in just a few minutes!

- Prep time
- 15 min
- Cook time
- 5 min
- Yield
- 2 servings
- Difficulty
- HARD
Ingredients
Quantities are shown as originally provided.
- 2 tbsp sake
- 1 tbsp mirin
- 1 tbsp Japanese soy sauce (koikuchi shoyu)
- 1 tsp sugar
- ½ tbsp dashi stock (liquid, not powder (alternatively, sub with water and a small pinch of dashi granules))
- 1 tsp toasted sesame oil
- 3 perilla leaves (shiso) (thinly sliced)
- 2 tbsp kizami nori (shredded nori)
- wasabi paste (to taste)
- 2 tbsp green onion (finely chopped)
- 30 g Japanese cucumber (diagonally sliced)
- 150 g sashimi-grade tuna
- 50 g sashimi-grade salmon
- 2 portions cooked Japanese short-grain rice
- 1 tsp toasted white sesame seeds
Instructions
- 1
Add 2 tbsp sake and 1 tbsp mirin to a small sauce pan and heat on medium. Bring to boil and allow to bubble for 30 seconds.
- 2
Turn heat down to low and add 1 tsp sugar and ½ tbsp dashi stock. Mix over the heat until sugar is dissolved.
- 3
Once the sugar is dissolved, turn off the heat and add 1 tbsp Japanese soy sauce (koikuchi shoyu) and 1 tsp toasted sesame oil. Mix and remove from the stove. Leave to cool for about 10 minutes.
- 4
Using sharp knife, cut 150 g sashimi-grade tuna and 50 g sashimi-grade salmon into thin strips.
- 5
Finely dice the tuna and salmon using a rocking motion with your knife. As the tuna and salmon spreads out, scrape it back to the centre and repeat, cutting in different directions each time until a "mince" is formed.
- 6
Divide 2 portions cooked Japanese short-grain rice into portions and make a bed of 3 perilla leaves (shiso) and 2 tbsp kizami nori (shredded nori).
- 7
Place the mashed tuna and salmon on top and sprinkle with 2 tbsp green onion and 1 tsp toasted white sesame seeds. Arrange 30 g Japanese cucumber on the side with wasabi paste to taste and pour the sauce over the top.
- 8
Mix well before eating and enjoy!