How to Make Tuna Tartare with Avocado, Soy and Citrus

Tuna tartare might sound sophisticated, but it’s simple to prepare at home. Combine fresh sushi‑grade tuna with crisp cucumber, creamy avocado, scallions and a savory sauce, then serve chilled with baked wonton chips or another crunchy vehicle for scooping.

Tuna Tartare with wonton chips

Tuna Tartare with Cucumber and Avocado

A friend once brought me a freshly caught tuna and I turned it into this light, refreshing tartare to share as an appetizer. The combination of raw tuna, cooling cucumber and buttery avocado is bright and balanced — perfect for warm evenings or as an elegant starter. If you prefer a larger portion, this recipe can easily be enjoyed as a main course. If you don’t have access to freshly caught fish, buy sushi‑grade tuna from a reputable fishmonger and confirm its freshness and source.

Tuna with Cucumber, avocado and sauces

What is tuna tartare made of?

Below are the core ingredients for this straightforward tuna tartare (exact measurements are listed in the recipe section):

  • Tuna: Use sushi‑grade tuna from a trusted source. The fish should smell fresh, not fishy, and be handled and stored properly to be safe for raw consumption.
  • Cucumber: Adds a crisp, cooling texture to contrast the tuna.
  • Avocado: Brings creaminess and richness; add it just before serving to avoid browning.
  • Sauce: A mix of soy sauce or tamari, sesame oil and a touch of sriracha (optional) provides umami, nuttiness and a hint of heat.
  • Scallions and Ginger: Scallions add color and a mild onion note; fresh grated ginger is optional for a subtle warm spice.

How To Make Tuna Tartare

This recipe is best enjoyed immediately after assembling so the textures remain vivid. Follow these steps for a reliable, flavorful tartare:

  1. Prepare the tuna: Trim the tuna and pat it dry. Finely dice into small, even cubes so every bite has a consistent texture.
  2. Make the sauce: Whisk together soy sauce or tamari, sesame oil and sriracha. Taste and adjust the spice level to your preference.
  3. Combine: In a bowl, gently fold the diced tuna with scallions, cucumber and grated ginger if using. Pour the sauce over and toss carefully to coat without breaking up the fish.
  4. Chill briefly: You can refrigerate the dressed mixture for a short time to blend flavors, but avoid leaving it too long so the texture stays fresh.
  5. Add avocado: Fold in diced avocado right before serving to keep it vibrant and prevent browning.
  6. Plate and garnish: Serve chilled in a bowl or shaped with a ring mold for a refined presentation. Garnish with extra scallions or sesame seeds and serve with crunchy chips or vegetable sticks.
tuna, scallions, cucumber, avocado in a bowl
Tuna Tartare in a bowl

Tips and Variations

  • Fish swap: Use sushi‑grade salmon instead of tuna for a milder, fattier tartare.
  • Cucumber choice: English or Persian cucumbers work well because they have fewer seeds and a crisper bite.
  • Spice level: Omit sriracha for no spice, or replace it with a milder chili sauce to taste.
  • Acid and crunch: A squeeze of fresh lime or lemon brightens the dish; toasted sesame seeds or thinly sliced radish add texture.

What to Serve with Tuna Tartare

  • Serve chilled on a cold plate with something crunchy, such as baked wonton chips or thin crackers.
  • Alternative chips: purple potato chips, plantain chips, or other sturdy baked chips.
  • Low‑carb option: bell pepper strips, cucumber rounds or jicama sticks make crisp, fresh scoops.

Storage

Tuna tartare is best eaten the day it’s made. If you must store leftovers, keep them tightly covered in the refrigerator and use within 48 hours. Add avocado only when serving to preserve color and texture.

Tuna Tartare with wonton chips

More Tuna Recipes You’ll Love

  • Grilled tuna over arugula with lemon vinaigrette
  • Spicy tuna poke bowls
  • Sesame‑crusted tuna steak on arugula
  • Ahi tuna and watermelon salad
  • Seared tuna salad with wasabi butter sauce

Tuna Tartare Recipe

Ingredients (Yield: 4 servings)

  • 6 ounces sushi‑grade tuna, finely diced
  • 2 tablespoons soy sauce or gluten‑free tamari
  • 2 teaspoons sesame oil
  • 1 teaspoon sriracha (optional, to taste)
  • 1/2 medium cucumber, peeled, seeded and diced
  • 1 teaspoon fresh grated ginger (optional)
  • 2 ounces avocado (about 1/2 Haas), diced
  • 1 tablespoon scallions, thinly sliced

Instructions

  1. Finely dice the sushi‑grade tuna into small, even cubes.
  2. Whisk together the soy sauce or tamari, sesame oil and sriracha in a small bowl. Adjust sriracha to your preferred heat level.
  3. Gently combine the diced tuna, scallions, cucumber and grated ginger (if using) in a larger bowl. Pour the sauce over and toss gently to coat.
  4. If desired, refrigerate briefly to chill, but avoid leaving it for long so the fish stays fresh.
  5. Fold in the diced avocado just before serving to prevent browning.
  6. Serve chilled, shaped with a ring mold for presentation if you like, and offer baked wonton chips or crisp vegetable sticks for scooping.

Notes

Use only sushi‑grade fish intended for raw consumption. If unsure about quality or storage, consult your fishmonger. Add avocado at the last minute and serve immediately for best texture and color.

Nutrition (per serving)

Calories: 114 • Protein: 11 g • Carbs: 2.5 g • Fat: 6.5 g • Fiber: 1.5 g