The Art of Kaisendon: Bringing Japan's Most Celebrated Sashimi Bowl Home
There are few dishes in Japanese cuisine that deliver quite the same sense of occasion as a beautifully assembled kaisendon -- a sashimi rice bowl that transforms the finest raw seafood into an elegant, deeply satisfying meal. In Japan, these bowls are a cornerstone of coastal dining, found in harbour-side markets from Hokkaido to Kyushu, where the morning catch meets perfectly seasoned rice within hours of leaving the ocean.
The beauty of kaisendon lies in its simplicity. There is no complex sauce work, no lengthy braising, no demanding technique. Instead, everything rests on the quality of your ingredients. When the scallops are sweet and firm, when the uni melts like warm butter on the tongue, and when the rice carries just the right whisper of vinegar, you have a dish that rivals anything served in Tokyo's finest sushi bars.
The best part? You do not need to board a flight to enjoy it. With Miss A's Handpick Fine Food, Singapore's trusted source for premium groceries, you can have sashimi-grade Hokkaido seafood delivered directly to your door -- making this a luxurious weeknight dinner or a show-stopping weekend centrepiece.
What You Will Need
This recipe serves two generous bowls. Every core ingredient has been selected for its quality and availability through missa.sg, so you can shop with confidence knowing that what arrives at your kitchen is genuinely restaurant-grade.
For the Sushi Rice
| Ingredient | Quantity |
|---|---|
| Hokkaido White Rice | 1.5 cups (300g) |
| Rice vinegar | 3 tablespoons |
| Sugar | 1 tablespoon |
| Fine sea salt | 1 teaspoon |
Hokkaido rice is the ideal foundation for this bowl. Its short, plump grains have a natural sweetness and a slightly sticky texture that holds together beautifully when seasoned, creating a bed that complements -- rather than competes with -- delicate raw seafood.
For the Toppings
| Ingredient | Quantity |
|---|---|
| Sashimi Grade Hotate Scallops | 6 large scallops |
| Fresh Hokkaido Bafun Uni 100g | 1 tray (100g) |
| Fresh Japanese Eggs | 2 eggs (for onsen egg) |
| Chitose's Oba (shiso leaves) | 4-6 leaves |
| Nori (seaweed), cut into thin strips | A small handful |
| Tobiko or ikura (fish roe), optional | 2 tablespoons |
For the Dipping Sauce
| Ingredient | Quantity |
|---|---|
| Taiwan Grown Single Origin Natural Black Soy Sauce | 3 tablespoons |
| Mirin | 1 tablespoon |
| Fresh wasabi or wasabi paste | To taste |
Step-by-Step Instructions
Step 1: Prepare the Sushi Rice
Great sashimi deserves great rice. This is not a step to rush.
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Rinse the rice thoroughly. Place the Hokkaido White Rice in a large bowl and cover with cold water. Swirl gently with your hand, then drain. Repeat this four to five times until the water runs nearly clear. This removes surface starch and prevents the cooked rice from becoming gummy.
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Cook the rice. Transfer the rinsed rice to a rice cooker with water according to your machine's sushi rice setting. If cooking on the stove, use a 1:1.1 ratio of rice to water. Bring to a boil, reduce to the lowest heat, cover tightly, and cook for 12 minutes. Remove from heat and let it steam, still covered, for another 10 minutes.
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Season the rice. While the rice cooks, gently warm the rice vinegar, sugar, and salt together in a small saucepan until the sugar dissolves -- do not let it boil. Transfer the hot rice to a wide, shallow bowl (a wooden hangiri is traditional, but any large bowl works). Drizzle the vinegar mixture over the rice and fold it in using a cutting motion with a rice paddle or spatula. Fan the rice as you fold to help it cool and develop a glossy sheen. Cover with a damp cloth and set aside at room temperature. Never refrigerate sushi rice -- cold rice loses its tender texture.
Step 2: Prepare the Onsen Egg
An onsen egg adds a rich, silky element that ties the entire bowl together.
- Bring a pot of water to a rolling boil, then remove from heat.
- Gently lower the Fresh Japanese Eggs into the water using a spoon.
- Cover and let sit for exactly 13 minutes.
- Transfer the eggs to a bowl of ice water and let them cool for 5 minutes.
- When ready to serve, crack each egg gently into a small dish. The white should be barely set and custard-like, while the yolk remains gloriously runny.
Japanese eggs are prized for their rich, deeply orange yolks and clean flavour -- qualities that make a genuine difference in a dish this simple.
Step 3: Slice the Scallops
Handling sashimi-grade scallops properly is essential to preserving their delicate sweetness and silky texture.
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Thaw carefully. If your Sashimi Grade Hotate Scallops are frozen, transfer them to the refrigerator the night before and let them thaw slowly overnight. For a quicker method, place them in a sealed bag and submerge in a bowl of cold water for 20 to 30 minutes. Never use warm water or a microwave -- rapid thawing damages the cellular structure and results in a mushy, waterlogged texture.
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Pat dry. Remove the scallops from their packaging and gently blot them with paper towels. Excess moisture on the surface dilutes flavour and makes clean slicing difficult.
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Slice. Using a sharp, thin-bladed knife (a sashimi knife is ideal, but any sharp chef's knife will do), cut each scallop horizontally into three or four even rounds, roughly 5mm thick. Let the weight of the knife do the work -- pressing too hard will crush the delicate flesh. Arrange the slices on a chilled plate and return to the refrigerator until you are ready to assemble.
Step 4: Prepare the Uni
Fresh Hokkaido Bafun Uni requires almost no preparation at all, which is part of its charm. Bafun uni from Hokkaido is renowned for its vibrant orange colour, creamy texture, and sweet, briny flavour with none of the metallic bitterness found in lesser grades.
- Open the tray carefully and inspect the lobes. They should appear plump, uniformly coloured, and moist.
- If any liquid has pooled in the tray, gently tilt and drain it away.
- Handle each lobe as little as possible -- uni is extraordinarily delicate and will break apart if overworked. Use a small spoon or offset spatula to transfer lobes when assembling.
- Keep the uni refrigerated right up until the moment of plating.
A note on quality: uni is one of those ingredients where the difference between good and great is enormous. The Hokkaido Bafun variety available through Miss A's is a genuinely premium product -- the kind that lets you taste the cold, clean waters it came from.
Step 5: Mix the Dipping Sauce
This simple sauce provides a savoury counterpoint to the natural sweetness of the scallops and uni.
- Combine the Taiwan Grown Single Origin Natural Black Soy Sauce and mirin in a small bowl and stir to combine.
- Place a small mound of wasabi alongside for guests to mix in according to their preference.
This naturally brewed black soy sauce has a rounder, less aggressive saltiness than standard soy sauce, which allows the seafood flavours to remain front and centre. It is also entirely plant-based, making it a thoughtful choice for guests with dietary considerations.
Variation -- Ponzu Drizzle: For a brighter, more citrus-forward profile, mix 2 tablespoons of soy sauce with 1 tablespoon of fresh yuzu or lemon juice and a few drops of mirin. Drizzle this directly over the assembled bowl instead of serving it on the side.
Step 6: Assemble the Bowl
This is the moment where patience and care pay off. A kaisendon should look as stunning as it tastes.
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The rice base. Moisten your hands lightly and divide the seasoned sushi rice between two deep bowls. Press it down gently to create a slightly mounded, even surface -- firm enough to support the toppings, but not packed so tightly that it becomes dense.
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The shiso layer. Lay two or three Chitose's Oba shiso leaves across one side of the rice. These aromatic leaves serve a dual purpose: they add a bright, herbaceous note that cuts through the richness of the seafood, and they create a beautiful dark green backdrop for the scallop slices.
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The scallops. Fan the sliced scallops across the shiso leaves in a slightly overlapping pattern, like petals of a flower.
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The uni. Arrange the uni lobes on the opposite side of the bowl from the scallops. Place them gently, letting each lobe rest naturally rather than forcing them into position.
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The onsen egg. Nestle the onsen egg into the centre of the bowl, creating a golden focal point between the scallops and uni.
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The finishing touches. Scatter the nori strips over the rice, add a small mound of tobiko or ikura if using, and place a tiny dab of wasabi on the rim of the bowl.
Tips for the Best Results
Keep everything cold. Sashimi-grade seafood should stay refrigerated until the very last moment. If your kitchen is warm, place your serving bowls in the freezer for 10 minutes before assembling -- the chilled ceramic helps keep everything at the right temperature as you eat.
Use a sharp knife. A dull knife tears rather than slices, which ruins both the presentation and the texture of raw scallops. If you do not own a dedicated sashimi knife, sharpen your best chef's knife with a whetstone before you begin.
Do not overdress. The temptation to pour soy sauce liberally over a sashimi bowl is understandable but misguided. A light drizzle or a side dish for dipping allows each ingredient to speak for itself. When your scallops and uni are this good, the last thing you want is to mask them.
Season your rice properly. Under-seasoned rice is the most common mistake in homemade sushi bowls. The vinegar mixture should be clearly present -- tangy and lightly sweet -- without being overpowering. Taste as you go and adjust.
Eat immediately. Kaisendon does not wait. Once assembled, the clock is ticking: the rice is warm, the seafood is cold, and the contrast between the two is part of the magic. Serve the moment you finish plating.
Garnish Variations to Try
Once you have mastered the classic combination, consider these elegant additions:
- Shredded daikon radish beneath the sashimi for a crisp, refreshing crunch
- Pickled ginger (gari) on the side to cleanse the palate between bites
- Toasted sesame seeds scattered over the rice for a subtle nutty warmth
- Edible flowers such as shiso blossoms for a restaurant-style visual flourish
- A squeeze of fresh sudachi or lime over the scallops just before serving
A Final Word
There is something genuinely meditative about assembling a kaisendon. Each ingredient is placed with intention. Each element earns its place in the bowl. It is a dish that rewards care without demanding professional training -- and when you start with ingredients of this calibre, the result speaks for itself.
Whether you are cooking for someone special or simply treating yourself to something extraordinary on a quiet evening, this Hokkaido Scallop and Uni Don is a reminder that luxury, done right, can be wonderfully uncomplicated.
All ingredients are available for home delivery across Singapore at missa.sg. Browse the full range of premium Japanese seafood, pantry staples, and fresh produce to build your perfect bowl.
