Tuna and Avocado Tartar for a No-Cook Appetizer Recipe, Step by Step 2026

Tuna and avocado tartar is a sure bet for impressing at the table without any fuss, because it couldn't be easier or faster to make. With just a few good ingredients and this simple step-by-step method, success is guaranteed. It's an elegant, restaurant-worthy dish that comes together in 10 minutes with no cooking at all.

The contrast of silky raw tuna and buttery avocado, brought together by a bright honey-lime-soy dressing, makes every bite feel special. Serve it as a starter for a dinner party or a light lunch, and let the quality of the ingredients do the talking.

Ingredients for Tuna and Avocado Tartar

This recipe makes 2 servings as an appetizer.

• 1 block of frozen bluefin or yellowfin tuna (about 250 g)
• 1 teaspoon honey
• 1 teaspoon sesame oil (or olive oil as a substitute)
• 2 tablespoons lime juice
• 1 tablespoon soy sauce
• Ground black pepper
• 1 avocado
• 1 teaspoon sesame seeds
• Alfalfa sprouts (optional, to serve)

How to Make Tuna and Avocado Tartar Step by Step

1. Cut the tuna into cubes

To make this recipe, you can use bluefin or even yellowfin tuna depending on availability. What really matters is that it's very fresh fish that has been frozen for at least 5 days at a temperature of -20 ºC or lower to prevent anisakis, since the fish is used raw and knife-cut. First, take a block of bluefin or yellowfin tuna out of the freezer and let it rest on the counter for about 30 minutes before starting. After this time, once it has softened a little, cut it into small cubes.

2. Make the dressing

In a bowl, mix 1 teaspoon honey, 1 teaspoon sesame oil or olive oil as a substitute, 1 tablespoon lime juice, and 1 tablespoon soy sauce. Add a little ground black pepper to taste. Stir well until all the ingredients are combined.

3. Marinate the tuna

Add the cubed tuna to the bowl with the dressing and let it rest while you prepare the rest of the recipe. This way, the tuna will absorb the flavors of the marinade as it finishes thawing.

4. Dice and season the avocado

Wash and dry 1 avocado, remove the pit, scoop the flesh out of the skin, and cut it into small cubes the same size as the tuna. Mix it with 1 tablespoon lime juice and add a touch of pepper.

5. Plate the avocado base

Divide the avocado between two plates with the help of a plating ring, if you have one.

6. Add the marinated tuna

Divide the reserved tuna over the avocado on both plates.

7. Garnish with sesame and alfalfa

Optionally, garnish the tuna and avocado tartar with 1 teaspoon sesame seeds and a few alfalfa sprouts.

8. Serve the tartar fresh

Serve this flavorful tuna tartar immediately to enjoy it freshly made.

Tips for the Best Tuna and Avocado Tartar

Choose the right tuna

Use bluefin or yellowfin tuna that is very fresh and has been frozen for at least 5 days at -20 ºC or lower to prevent anisakis, since the fish is served raw. Cutting it while still semi-frozen makes it easier to get perfect, even cubes.

Personalize the dressing

The dressing comes together in seconds and lifts the flavor of both the tuna and the avocado. Feel free to customize it to your taste, for example by using Worcestershire sauce instead of soy sauce or adding a touch of wasabi if you enjoy heat with Japanese nuances.

Plate and serve immediately

Use a plating ring to build neat layers of avocado and tuna for a restaurant-style look. Serve the tartar right away so the avocado stays green and the tuna stays fresh and tender.

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