How to Make Sea Urchin Sushi with Foie Gras: A Gourmet Step-by-Step Guide

Sea Urchin Sushi with Foie Gras: Recipe

This is the most technically demanding sushi in this entire series. Not because either ingredient is difficult on its own — I’ve covered foie gras preparation hundreds of times and uni handling dozens — but because they want opposite things from temperature. Uni needs to stay cold. Foie gras needs to be seared hot and served warm. Placing a warm slice of seared foie gras directly on top of cold uni sounds like it will melt the uni into a warm puddle, and if you do it carelessly, it does exactly that.

The solution is sequencing and speed. Sear the foie gras, rest it for exactly 20 seconds, then place it. The outside is slightly cooled but still warm; the uni receives a gentle heat rather than a searing one. That brief pause is the entire technique. Everything else follows standard gunkan assembly.

At Global Seafoods, we source sushi-grade uni with full traceability from the finest coastal fisheries — the same quality I use every time I make this at home.

For additional sushi techniques and recipes, visit the Global Seafoods YouTube channel.

Why Pair Sea Urchin with Foie Gras in Sushi?

Uni and foie gras are arguably the two richest ingredients in their respective culinary traditions — one from the sea, one from the land — and they share a similar structural characteristic: both are high in fat, glutamates, and umami compounds. When they combine, the result is an amplified richness that neither achieves independently, along with a complexity of flavor that unfolds in layers. The uni arrives first — oceanic, sweet, slightly briny. The foie gras follows — buttery, earthy, deeply savory. The finish lingers in a way that simpler sushi doesn’t.

Chef Masaharu Morimoto, who has featured uni and foie gras as a signature pairing in his omakase menus, has described it as bold yet balanced — the ultimate luxury sushi experience where each ingredient amplifies rather than overwhelms the other. The key is keeping the foie gras portion small enough that it doesn’t dominate. Uni leads; foie gras follows.

For high-quality sea urchin perfect for sushi, explore Sea Urchin Uni at Global Seafoods.

Key Ingredients for Sea Urchin Sushi with Foie Gras

Two luxury ingredients, both unforgiving of quality shortcuts.

• Fresh Sea Urchin (Uni): Bright orange to golden, firm and creamy, clean oceanic aroma. For this format specifically, you want firmer uni — it will receive a small amount of residual warmth from the foie gras and softer varieties collapse. Santa Barbara red uni or Hokkaido Bafun uni are both well-suited.
• Foie Gras: Fresh duck foie gras (lobe, not pâté or terrine) for searing. Grade A is ideal — it has a higher fat content which means it sears cleanly without falling apart. Slice into pieces approximately 1cm thick and 2cm wide — small enough to sit on top of the uni without overhanging the nori cup. Remove from refrigerator 10 minutes before searing so it doesn’t seize in the pan.
• Sushi Rice: Short-grain Japanese rice, room temperature, lightly seasoned with rice vinegar, sugar, and salt. Neutral — it’s carrying two very strong flavors and shouldn’t compete.
• Nori (Seaweed Strips): Fresh, crisp, 2-inch wide strips for the gunkan cup. The structure of the nori cup is important here because the foie gras adds weight and the piece needs to hold together through the brief rest period.
• Optional Garnishes: A single flake of Maldon sea salt on the foie gras surface, microgreens or chives on the nori rim, or edible gold flakes if you’re serving this at a dinner where presentation matters.

Step-by-Step Guide: How to Make Sea Urchin Sushi with Foie Gras

Read step 5 before you start. The foie gras timing determines the success of the whole piece and it requires your full attention at the moment it happens.

Ingredients

• 1 cup sushi rice, cooked and seasoned with rice vinegar
• 4–5 pieces fresh sushi-grade uni
• 1 sheet nori, cut into 2-inch wide strips
• Fresh duck foie gras lobe, sliced 1cm thick, small pieces
• Optional garnishes: microgreens, sesame seeds, chives, Maldon salt flakes

Instructions

1. Prepare the Sushi Rice: Rinse 1 cup of sushi rice under cold water until the water runs clear. Cook, season with rice vinegar, sugar, and salt, spread onto a wide shallow bowl, and fan to room temperature. Season lightly — both toppings are intensely flavored.
2. Shape the Rice Base: With wet hands, shape a marble-sized amount of rice into a firm, compact oval. Slightly firmer compression than standard nigiri — the foie gras adds meaningful weight and the base needs to support it cleanly.
3. Wrap with Nori: Wrap a 2-inch nori strip around the rice oval so it rises about 1cm above the top — taller than usual, because you’re stacking both uni and foie gras. Seal the overlap with a single grain of rice. Let it sit for 30 seconds to adhere before filling.
4. Place the Uni: Using tweezers, lower a piece of uni into the nori cup so it covers the rice. Keep the uni cold until this exact moment — I transfer pieces directly from the ice bowl to the nori cup without any intermediate step.
5. Sear and Place the Foie Gras: This is the step. Heat a dry pan — no oil, foie gras provides its own — until it’s very hot, about 30 seconds on high. Season the foie gras slice lightly with salt on one side. Place it in the pan seasoned-side down, press gently for full surface contact, and sear for 45–60 seconds until golden brown. Flip and sear the other side for 30 seconds. Remove from the pan and rest on a clean surface for exactly 20 seconds. Then place it on top of the uni, seared-side up. The 20-second rest is the whole technique: the outside cools slightly while the inside stays warm, and the uni receives warmth rather than heat.
6. Garnish and Serve Immediately: A single Maldon salt flake on the foie gras surface amplifies the sear. Microgreens or chives on the nori rim. Serve within 20 seconds of placing the foie gras — this piece does not wait.

For premium-grade sea urchin perfect for making sushi, check out Sea Urchin Uni at Global Seafoods.

Expert Tips for Perfecting Sea Urchin Sushi with Foie Gras

Three things that separate a good version from a great one.

1. Grade A Foie Gras and the Right Cut Size

Grade A duck foie gras has the fat distribution needed for a clean sear without the lobe crumbling. The slice size matters: too thick and it overwhelms the uni; too thin and it overcooks before the outside browns. 1cm thick, 2cm wide is the right proportion for this format. I cut all the pieces before I start the rice so they’re ready when needed.

2. Temperature Sequencing Is Everything

Chef Nobu Matsuhisa has said that with uni and foie gras, balance is paramount and less is often more. The temperature dimension is part of that balance. A piece assembled correctly should feel warm-meets-cold in the mouth — the contrast is part of the experience. If the foie gras is too hot when placed, it warms the uni and rice and the whole piece arrives at the table as one undifferentiated warm mass. The 20-second rest preserves the contrast.

3. Assemble One at a Time, Serve One at a Time

This is not a dish to make in batches and plate for everyone at once. Sear one foie gras piece, rest it, assemble one gunkan, hand it to the guest. Sear the next. The foie gras quality degrades quickly once off the heat and the uni starts warming from the ambient temperature. Individual service is the only way to serve this at its best.

For sustainably sourced seafood and sushi essentials, explore our Sea Urchin Collection.

Dipping Sauces and Garnishes for Uni and Foie Gras Sushi

Even less than usual. This piece is already at the limit of what a single bite can carry.

1. Dipping Sauces

• Ponzu Sauce: The only sauce I’d use here. The citrus acidity cuts through the double richness of uni and foie gras more effectively than soy alone. Rice edge only, the smallest dip.
• Soy Sauce: If ponzu isn’t available — a touch only. Both ingredients already carry significant salinity.

2. Fresh Garnishes

• Chives or Microgreens: On the nori rim, not the foie gras surface. A mild herbal freshness that gives the eye somewhere to rest amid the richness.
• Sesame Seeds: Very light sprinkle for textural contrast and visual interest.

3. Edible Gold Flakes or Shiso Leaf

For a formal dinner presentation, a single edible gold flake on the foie gras surface signals luxury without adding flavor. A shiso leaf tucked inside the nori cup beneath the uni provides a refreshing minty counterpoint that cuts through the richness mid-bite — more functional than the gold, and my preference.

More Sea Urchin Guides

• How to Choose the Right Sea Urchin for Sushi: The Ultimate Guide — grades, freshness indicators, and selection tips.
• Sea Urchin Sushi vs. Regular Sushi: What’s the Difference? — texture, flavor, and preparation compared.
• Where to Find the Best Sea Urchin for Sushi: A Guide to Sourcing the Freshest Uni — top regions, grades, and buying tips.
• How to Make a Delicious Sea Urchin Sushi Bowl at Home — step-by-step bowl recipe with toppings and pairings.
• Mastering the Art of Cutting Sea Urchin for Sushi: A Complete Guide — opening, cleaning, and slicing techniques.
• How to Host an Unforgettable Sea Urchin Sushi Party: Tips and Tricks for Success — sourcing, presentation, and pairing for a crowd.
• How to Make Sea Urchin Sushi with Uni Butter: A Gourmet Step-by-Step Guide — rich uni butter variation.
• How to Make Sea Urchin Sushi with Uni Sauce: A Gourmet Step-by-Step Guide — creamy mayo-based uni sauce variation.
• How to Make Sea Urchin Sushi with Uni Cream: A Step-by-Step Gourmet Guide — velvety heavy cream variation.
• How to Make Sea Urchin Sushi with Uni Foam: An Elevated Step-by-Step Guide — light airy foam variation.
• How to Make Delicious Sea Urchin Sushi with Uni Mousse: A Gourmet Guide — airy whipped mousse variation.
• How to Make Sea Urchin Sushi with Uni Powder: A Unique Twist on Gourmet Sushi — concentrated umami powder variation.
• Sea Urchin Sashimi Plating Guide: Elevate Your Presentation Skills — professional plating techniques and garnish ideas.
• How to Make Delicious Sea Urchin Sushi Rolls at Home: Step-by-Step Guide — classic nori roll technique with cucumber and avocado.
• How to Make Sea Urchin Nigiri Sushi: A Step-by-Step Guide for Perfect Uni — nigiri shaping technique, rice temperature, and garnish tips.
• How to Choose the Perfect Rice for Sea Urchin Sushi: A Complete Guide — rice varieties, seasoning ratios, and preparation techniques.
• How to Make Delicious Sea Urchin Sushi with Soy Paper: A Unique Twist — colorful soy paper alternative to nori.
• How to Make Sea Urchin Sushi with Nori: A Step-by-Step Guide for Perfect Uni — gunkan-style battleship format with nori cup technique.
• How to Roll Sea Urchin Sushi: A Step-by-Step Guide for Beginners — rolling technique, mat setup, and cutting tips.
• How to Make Sea Urchin Sushi with Yuzu: A Step-by-Step Guide to Exquisite Flavor — yuzu citrus enhancement technique and garnish tips.
• How to Make Delicious Sea Urchin Sushi with Quail Egg — gunkan with quail egg yolk, assembly timing, and serving tips.
• How to Make Sea Urchin Sushi with Truffle: A Step-by-Step Gourmet Guide — microplane technique, truffle oil guidance, and serving timing.

Frequently Asked Questions About Sea Urchin Sushi with Foie Gras

Can I make uni and foie gras sushi without nori?
Yes — open-faced nigiri with uni and foie gras on top of shaped rice works. The nori cup is preferable because it provides structural support for the weight of both ingredients and the brininess adds a useful flavor contrast against the double richness of uni and foie gras.

Where can I buy fresh sea urchin and foie gras?
For high-quality, sushi-grade sea urchin, visit Global Seafoods. Fresh duck foie gras is available at specialty butchers, high-end grocery stores, and online gourmet retailers; look for Grade A lobe, not pâté or terrine.

How should I store leftover uni and foie gras?
Uni: airtight container at 32–34°F, consume within 24 hours. The FDA’s seafood safety guidelines recommend raw seafood at or below 40°F. Foie gras: wrap tightly, refrigerate, use within 2 days of purchase; quality degrades noticeably after that.

What other ingredients pair well with uni in sushi?
Caviar adds salinity and pop; truffle adds earthy umami depth; quail egg adds rounded richness. All three are covered in detail in the guides above — each requires a different assembly technique.

Can I use cooked foie gras (terrine or pâté) instead of searing?
Terrine or pâté can be used but the result is quite different. You lose the seared crust and caramelization that creates textural contrast with the soft uni, and the flavor is more muted. A thin slice of chilled terrine placed directly on the uni skips the temperature problem entirely but delivers a less dramatic result. If searing feels like too much for a home setting, terrine is a workable starting point.