Tuna tartare on crispy rice

Ingredients

• 200 g (1 cup)sushi rice
• 45 ml (3 tbsp)white vinegar
• 5 ml (1 tsp)sugar
• 1 pinchsalt
• 300 gfresh tuna, diced
• 45 ml (3 tbsp)soy sauce
• 30 ml (2 tbsp)mayonnaise
• 30 ml (2 tbsp)sweet chilli sauce
• 15 ml (1 tbsp)sesame oil
• zest of 1lemon
• 1spring onion, chopped
• 1avocado

Instructions

1. 1

   Cook the rice

   Cook the sushi rice as you would ordinary rice.

2. 2

   Season and chill

   When the rice is ready, mix it with the vinegar, sugar and salt. Spread it in a 20 × 20 cm tin, pressing firmly to compact it, then refrigerate for 30 minutes.

3. 3

   Marinate the tuna

   Mix all the remaining ingredients except the avocado, then leave the mixture to marinate in the refrigerator for 30 minutes.

4. 4

   Crisp the rice

   Cut the rice into 9 squares and fry them in oil, or cook them in an air fryer at 200°C for 20 minutes, turning halfway through.

5. 5

   Assemble and serve

   Top each rice base with avocado and add a tablespoon of tuna tartare.

What is tuna tartare on crispy rice?

Tuna tartare is diced raw tuna seasoned and served uncooked; here it is paired with compacted sushi rice that is crisped just before serving. The combination draws on Asian-inspired flavours and contrasts cool, tender fish with a crunchy base.

Seasoning the rice with vinegar, sugar and salt gives it a sushi-style tang, while avocado softens the sharp, savoury flavours. The method is suited to a party platter because the rice and tuna can chill while you prepare the other components.

Nutrition and macros by portion

The nutrition label shows one serving as written: 110 calories, 7g protein, 11g carbs, 4g fat.

The rice supplies most of the carbohydrates, while the tuna contributes protein. Mayonnaise, sesame oil and avocado provide much of the fat; the soy sauce also contributes sodium. For a more balanced plate, serve a piece alongside a generous portion of fresh vegetables.

Choosing the tuna

Fresh tuna: use fish suitable for eating raw, and keep it chilled until you are ready to dice and season it. Cut it into small, even cubes so the topping is easy to spoon onto the rice.

Seasoning: soy sauce, mayonnaise, sweet chilli sauce and sesame oil bring saltiness, creaminess, sweetness and toasted aroma. Lemon zest and spring onion add a bright, fresh finish.

Compact the rice well

Even layer: spread the seasoned rice across the 20 × 20 cm tin and press it firmly into an even slab. A compact layer is easier to cut and handle once chilled.

Chill: the 30-minute refrigeration firms the rice before cutting. If it still feels loose, handle the squares gently as you move them to the pan or air fryer.

Getting a crisp base

Frying: the recipe calls for frying the squares in oil but does not specify an amount or give a pan temperature. Work carefully and turn them as needed so the surfaces brown without breaking the compacted rice.

Air frying: cook at 200°C for 20 minutes, turning the squares halfway through. Look for a crisp exterior; cooking time can vary with the size and thickness of the pieces.

Keep the tartare chilled

Marinating: refrigerate the tuna mixture for 30 minutes as directed, rather than leaving it at room temperature. Keep it cold until you assemble the bites.

Timing: prepare the rice and tuna during their separate chilling periods, then crisp the rice close to serving time. This helps preserve the contrast between the warm, crunchy base and cool topping.

Serving and portioning

Assembly: add avocado to each crisp rice base, then spoon on the tuna tartare. The method cuts the rice into 9 squares, although the recipe states 16 servings, so the finished pieces may need to be divided or portioned differently to serve 16.

On the side: serve with a simple salad or sliced cucumber for a fresh contrast. Add the topping shortly before serving so the rice stays crisp.

Recipe notes & tips

• Chill the rice slab for the full 30 minutes before cutting it.
• Press the rice firmly into the tin to help the squares hold together.
• Keep the diced tuna and its marinade refrigerated until serving.
• Turn the rice squares carefully so they keep their shape.
• Cut the avocado close to serving time to keep it looking fresh.
• Spoon on the tuna just before serving to protect the crisp texture.

Variations

• Add cucumber: top with finely diced cucumber for extra crunch.
• Adjust the heat: use more or less sweet chilli sauce to suit your taste.
• Swap the citrus: use lime zest in place of lemon zest.
• Add sesame seeds: scatter them over the assembled bites for extra toasted flavour.
• Make smaller bites: cut the chilled rice into smaller pieces for a party platter.

Common mistakes to avoid

• Loose rice: press it firmly into the tin and chill it before cutting.
• Warm tuna: keep the fish refrigerated while it marinates and until assembly.
• Uneven squares: spread the rice in an even layer so the pieces crisp consistently.
• Breaking the bases: handle the chilled rice squares gently when transferring and turning them.
• Soft rice at serving: crisp the bases close to serving time and add the topping just before serving.
• Unclear serving count: the method makes 9 squares for 16 stated servings, so plan the final portions before assembling.

How to store

Keep the tuna mixture covered in the refrigerator and use it promptly; this dish is best assembled and eaten fresh. Store leftover crisp rice separately from the tuna and avocado, and re-crisp the rice in an air fryer or pan rather than reheating the assembled bites.

Frequently asked questions