Tuna Tartare Recipe with Crispy Wontons & Wasabi Mascarpone

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Most tuna tartare recipes drown the fish in so much sauce you can't taste what you paid for. This one doesn't. Sushi-grade tuna gets a quick toss in citrus, tamari, and sesame oil - just enough to season it, not bury it - then it goes on a crispy fried wonton with wasabi mascarpone underneath. It's the appetizer you order twice at the good restaurant because you can't believe you're allowed to eat it with your hands.

Overhead shot of tuna tartare in a bowl with crispy fried wontons and wasabi mascarpone

Buy the tuna the day you're serving it, ask for sushi-grade or sashimi-grade, and keep it ice-cold until it hits the bowl - that's the whole safety plan and it works. If you've made my beef tartare, you already know the drill: fresh, cold, simple, no shortcuts. This one's built for the same night - real plates, cloth napkins, the whole thing - so pair it with something else from my date night dinner recipes list and you've got a full menu that doesn't taste like a Tuesday.

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Ingredients
Why You'll Love This Recipe
Instructions
Substitutions
Variations
Equipment
Storage
Top Tip
Frequently Asked Questions
More from Whisk & Wine
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Tuna Tartare Recipe with Crispy Wontons & Wasabi Mascarpone
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Ingredients

Nothing exotic here - it's mostly produce, pantry staples, and really good fish. Here's what you'll need, broken out by component.

Tuna Mixture

Sushi-grade tuna
Cucumber
Chives
Shallots
Orange zest
Lime zest
Sesame seeds

Vinaigrette

Orange juice
Lime juice
Tamari
Sesame oil

Avocado

Avocado
Lime juice
Soy sauce

Wontons

Wonton wrappers
Avocado oil, for frying

Wasabi Mascarpone

Mascarpone
Wasabi paste
Water

For Serving

Microgreens
Lime wedges

See recipe card for quantities.

Why You'll Love This Recipe

This isn't just a pretty plate - here's why it's worth the extra ten minutes of prep.

Restaurant flavor, home kitchen effort. Fifteen minutes of chopping gets you the appetizer you'd pay $22 for at a steakhouse.
Barely any cooking. The tuna, avocado, and mascarpone are all raw or no-cook - you're just frying a quick batch of wonton chips.
Built to impress. The ring mold presentation, the contrast of textures, the bright citrus - it's a date-night or dinner-party opener that does the work for you.
Make-ahead friendly components. The vinaigrette, avocado, and mascarpone can all be prepped ahead - you just assemble right before serving.

Instructions

Seven steps, and the fish barely touches a knife twice. Here's how it comes together.

Mix the Tuna

Combine the tuna tartare ingredients in a medium bowl.

Whisk the Vinaigrette

Whisk together orange juice, tamari, lime juice, and sesame oil, then gently toss it with the tuna mixture.

Season the Avocado

Combine avocado, lime juice, and soy sauce in a small bowl.

Whip the Wasabi Mascarpone

Whisk mascarpone, wasabi paste, and water until smooth.

Fry the Wontons

Fry wonton wrappers in avocado oil until golden and crisp, 1-2 minutes per side. Drain on paper towels and season with salt.

Build the Tartare

Set a ring mold on a plate, layer the avocado on the bottom, then top with the tuna mixture. Remove the mold and garnish with microgreens.

Serve

Serve with the fried wontons, wasabi mascarpone, and lime wedges.

Substitutions

A few swaps if you're missing something or serving a different crowd.

No sushi-grade tuna available? Sushi-grade salmon works the same way - same technique, different fish, same rule about buying it same-day from a fishmonger you trust.
Skip the fryer. Store-bought wonton chips or sesame crackers get you the crunch without the oil.
No mascarpone? Crème fraîche or full-fat cream cheese thinned with a little water makes a close stand-in.
Tamari swap. Regular soy sauce works fine if that's what's in the pantry - tamari's just there for the gluten-free option.

Variations

Once you've made it once, it's easy to riff on.

Add heat. A drizzle of spicy mayo (sriracha and Kewpie) over the top brings some kick.
Swap the fruit. Diced mango instead of avocado gives it a sweeter, more tropical edge.
Change the citrus. Grapefruit or yuzu juice in the vinaigrette instead of orange and lime shifts the whole flavor a few degrees.
Go bite-sized. Skip the ring mold and serve the tartare in individual spoons or right on the wonton chips for a passed appetizer.

Equipment

Nothing fancy required, but a couple of these make the plating a lot easier.

Ring mold - this is what gives you that clean, stacked restaurant look. stainless steel ring mold set for the one I use, or budget ring mold if you just want to try it once before committing.
Sharp knife - dicing raw tuna cleanly, not mashing it, makes a real difference in texture. premium chef's knife is the splurge, or budget chef's knife gets the job done just as well here.
Frying thermometer - wonton wrappers go from golden to burnt fast, so knowing your oil is actually at temp matters. premium frying thermometer or budget clip-on thermometer.
Non-toxic mixing bowls - you're tossing raw fish by hand, so I like stainless or glass over anything with a coating. premium stainless mixing bowl set or budget glass mixing bowls.
Microplane zester - for the orange and lime zest, a good one makes fine, fluffy zest instead of bitter pith. premium microplane or budget zester.

Storage

This is a same-day dish, and that's not me being precious about it - it's raw fish. Once the tuna is dressed, plan to eat it within an hour or two: the acid in the vinaigrette starts to "cook" the fish the longer it sits, and raw fish just isn't something to keep around overnight. If you have extra sushi-grade tuna that hasn't been mixed with the dressing yet, keep it tightly wrapped in the coldest part of your fridge and use it the same day you bought it. The wasabi mascarpone keeps in an airtight container in the fridge for up to 2 days if you want to prep that piece ahead. Skip freezing or reheating anything here - this isn't a dish built for a second life.

Top Tip

Buy your tuna last, not first - make it the final stop on your shopping trip, ask specifically for sushi-grade or sashimi-grade, and get it straight into the fridge on ice. Everything else in this recipe can wait around. The tuna can't.

Frequently Asked Questions

Here's what people usually ask me before they make this.

Is it safe to eat raw tuna at home?

Yes, as long as you buy sushi-grade or sashimi-grade tuna from a reputable fishmonger or the seafood counter of a grocery store you trust, and you use it the same day you buy it. "Sushi-grade" isn't an official government label, but it signals the fish has been handled - and in most cases flash-frozen - to standards safe for raw eating. When in doubt, ask the person behind the counter what's freshest and tell them it's for tartare.

Can I make this ahead of time?

You can prep the vinaigrette, wasabi mascarpone, and fried wontons a few hours ahead. Cut the tuna and toss it with the dressing right before you plan to serve - it only takes a few minutes and it's better fresh.

What can I use instead of a ring mold?

A small cookie cutter, a wide ramekin, or even a clean tuna can with both ends removed all work the same way. You can also skip the mold entirely and just spoon everything onto the wontons.

What does wasabi mascarpone taste like?

Cool, creamy, and just spicy enough to wake up your palate without overwhelming the tuna - think of it as a milder, richer cousin of wasabi mayo.