Restaurant Style Tuna Tartare Recipe: Easy Step-by-Step Guide

Tuna tartare is one of the most refined raw seafood dishes served in high-end dining environments, especially in a restaurant in London where precision, freshness, and plating define the experience. Known for its clean texture, delicate seasoning, and precise knife-cut technique, this dish depends entirely on ingredient quality and execution control rather than cooking methods.

This restaurant-style tuna tartare recipe focuses on simplicity, freshness, and professional technique, just like it is prepared in a professional kitchen. Whether you’re a food lover or exploring gourmet recipes at home, this guide will help you understand how to prepare tuna tartare step-by-step with confidence.

Ingredients: Everything You Need for the Perfect Tuna Tartare

For the Tuna Tartare Base:

• 300g (10 oz) sushi-grade ahi tuna
• 1.5 tablespoons low-sodium soy sauce
• 1 teaspoon toasted sesame oil
• 1.5 teaspoons fresh lime juice
• 1 teaspoon rice vinegar
• 1–2 teaspoons sriracha or gochujang
• 1 teaspoon freshly grated ginger 
• 1 small garlic clove, microplaned or very finely minced
• 2 tablespoons thinly sliced scallions (green onions)
• 1 teaspoon black sesame seeds
• ½ teaspoon fish sauce (optional, adds deep umami flavour)

For the Avocado Base:

• 1 large ripe Hass avocado
• 1 teaspoon fresh lime juice
• Flaky sea salt and cracked black pepper
• ½ teaspoon wasabi paste (optional)

For the Sriracha Mayo:

• 3 tablespoons Japanese Kewpie mayonnaise
• 1–2 teaspoons sriracha
• ½ teaspoon lime juice

For Serving and Garnish:

• Wonton crisps or thinly sliced cucumber rounds
• Microgreens or shiso leaves
• Thinly sliced breakfast radish
• Tobiko 
• piquillo sauce

How to Choose the Right Tuna

Understanding what is tuna tartare made of is essential before cooking. The answer is simple but critical: it is made from raw, sushi-grade tuna combined with balanced seasoning and aromatics. You must always use sushi-grade or sashimi-grade tuna. This is essential for safety and texture.

Best options:

• Ahi tuna (most common for tartare tuna recipe)
• Bigeye tuna (richer, buttery texture)
• Bluefin tuna (premium fine dining option)

This step is what defines the best tuna tartare recipe because poor-quality fish cannot be fixed with seasoning. This quality standard is similar to what you find in a premium restaurant in Notting Hill,  where sourcing and freshness are treated as the foundation of every dish.

Restaurant Style Tuna Tartare Recipe: Step-by-Step

At the restaurants in London, tuna tartare is prepared using a controlled kitchen technique designed around three core principles: temperature discipline, knife precision, and flavor emulsion balance. This method is consistently followed by our professional chefs to ensure every portion maintains the same restaurant-standard texture, taste, and presentation.

Step 1: Prepare the Tuna 

The first and most important step is controlling the condition of the tuna before any cutting begins. The tuna is kept in a chilled environment (not frozen, not room temperature) to maintain firmness. This ensures the fish holds its structure during slicing and does not release excess moisture.

Preparation process:

• Pat the tuna completely dry using a paper towel to remove surface moisture
• Keep the fish cold until the moment of cutting to preserve texture stability
• Use a long, extremely sharp chef’s knife for smooth, single-motion cuts
• Cut the tuna into uniform small cubes (not minced or chopped aggressively)

The goal here is structural integrity; each piece should hold shape and look clean. If the tuna is crushed or uneven, it will lose its quality texture and become mushy when seasoned.

Step 2: Build the Flavor Base (Emulsion Formation Stage)

Instead of directly mixing sauces into the tuna, professional chefs first create a controlled flavour base. This step is most important in the whole tartare tuna recipe. This makes sure that every piece of tuna receives an even coating of seasoning.

Combine in a separate bowl:

• Soy sauce 
• Sesame oil
• Rice vinegar 
• Fresh lime juice 

All liquids are gently mixed to form a balanced emulsion base, rather than separate liquid layers. This is important because it prevents overpowering flavors from hitting the tuna unevenly. This step defines the overall taste profile as slightly salty, lightly acidic, and naturally rich without overpowering the tuna’s freshness.

Step 3: Add Fresh Ingredients

Once the emulsion is ready, fresh ingredients are added to introduce texture contrast and aromatic depth.

Add to the bowl:

• Freshly cut tuna cubes
• Finely chopped shallots
• Optional finely diced cucumber (for light crunch and moisture balance)
• Fresh chives or spring onions for freshness

At this stage, the mixing must be extremely controlled. The ingredients should be folded gently, not stirred aggressively. The purpose is to maintain:

• cube structure of tuna
• clean separation of ingredients
• balanced distribution of aromatics

Overmixing at this stage will break down the tuna texture and reduce the dish to a paste-like consistency, which is not acceptable in restaurant preparation.

Step 4: Balance the Taste (Final Adjustment Stage)

This step is where professional chefs adjust the dish in real time. Unlike fixed recipes, the preparation relies on sensory calibration, meaning the final balance is adjusted based on taste, texture, and aroma interaction.

Adjustment logic used in kitchens:

• If the dish feels flat → a small increase in soy sauce enhances umami depth
• If acidity is too sharp → a slight addition of oil softens the profile
• If richness feels low → sesame oil is added in very small aromatic drops
• If flavour feels heavy → citrus zest is added instead of extra liquid

Key professional rule:

All adjustments are made in micro quantities, not large additions. Even a few drops can change the profile of raw fish. The goal is refinement, not alteration, maintaining tuna freshness while enhancing complexity. 

Step 5: Plating Like a Restaurant

Plating is treated as the final construction step of the dish. It is not decoration, it is structured food architecture.

Plating method:

• Use a ring mold to create a clean, cylindrical shape
• Gently place the tuna mixture inside without over-compressing it
• Lightly press to maintain structure while keeping air in the texture
• Carefully lift the mold to reveal a clean shape

Finishing elements:

• Sprinkle sesame seeds for subtle texture contrast
• Add fresh herbs for visual freshness and aroma
• Add a light swipe of piquillo sauce for a subtle sweet and smoky finish.

Optional Enhancement:

• Add avocado base underneath for creaminess
• Serve with crispy toast or crackers for contrast in texture

Tuna tartare is often paired with chilled white wine, which enhances its freshness and balances the citrus acidity. 

Spicy Tuna Tartare Version

A popular variation is the spicy tuna tartare recipe, where sriracha or chilli-based sauces are added to create heat while maintaining the freshness of the tuna, and the whole recipe remains the same.