Unadon; Grilled Eel Rice Bowl
This unagi don recipe layers glossy kabayaki eel, brushed with a sweet-savoury soy tare, over a bowl of steaming short-grain rice. The eel is rich and caramelised at the edges, the rice carries just enough sauce, and a dusting of sansho pepper lifts the whole bowl. One serving is about 335 g.
Unadon was the first donburi rice bowl, invented in Edo (Tokyo) in the late Edo period, during the Bunka era (1804–1818), when grilled eel over rice became a fast, filling meal for townspeople. Eel grilled kabayaki-style and basted with sweet soy tare remains the defining preparation, and unadon is still eaten in quantity on Doyo no Ushi no Hi, the midsummer Day of the Ox.
Pairs well with: Miso soup, pickled ginger & green tea
Provenance
Japan
Edo-Period Classic
East & South Asia
Time Dedication
35m
15m prep • 20m cook
Batch Yield
4 Servings
581 kcal per serving
1 serving ≈ 335 g
Technical Skill
Intermediate
Intermediate (Tare & Grill)
Meal Timing & Digestive Fit
Breakfast
Not Advised
Lunch
Hearty Midday Main
Dinner
Ideal Hearty Main
Snack & Tea
Inappropriate
Edo-Period Classic
Photo: ノボホショコロトソ, CC BY 4.0, via Wikimedia Commons
The Heritage Formulary
Estimated cost: Medium — about $6–8 per serving at home (eel is the main cost) (USD)
A good unadon is judged by the glaze: lacquered and glossy, never burnt, with rice that carries just enough tare.
Execution Methodology & Culinary Technique
Prep Stage: Rinse Rice & Mix Tare
15 Mins • Rinse & Measure
Rinse the rice until the water runs almost clear, then leave it to soak for 20 minutes and drain. Meanwhile whisk the soy sauce, mirin, sake and sugar in a small saucepan, slice the eel into pieces and cut the green onions.
Maestro Tip: Rinse the rice until the water runs almost clear — cloudy rinse water means gummy rice.
25 Mins • Simmer & Rest Boil 100°C (212°F), then low simmer ~90°C (194°F)
Put the drained rice in a heavy pot with 400ml of cold water. Bring to a boil, then cover, turn the heat to the lowest setting and simmer for 12 minutes. Take off the heat and rest, lid on, for 10 minutes. Fluff gently with a rice paddle.
Do not lift the lid while the rice simmers — the steam is doing the cooking.
Done when: Grains are tender, separate and glossy; no water pools at the bottom of the pot.
10 Mins Gentle simmer, ~95°C (203°F)
Bring the soy sauce, mirin, sake and sugar to a gentle simmer and cook for 5–7 minutes, stirring once or twice, until it thickens slightly and coats the back of a spoon. Set aside — it will thicken a little more as it cools.
Do not reduce it to a thick syrup; it should flow like thin honey, not jam.
Done when: The tare coats a spoon and drips in a slow, glossy ribbon.
6 Mins Grill / broiler, ~200°C (400°F)
Lay the eel pieces skin-side down on a foil-lined tray. Brush generously with tare and grill for 2–3 minutes. Turn, brush again and grill 2–3 minutes more until the glaze bubbles and caramelises at the edges.
Watch it closely in the last minute — the sugar in the tare goes from caramelised to burnt fast.
Done when: Glaze bubbles and darkens at the edges; the flesh flakes easily and reaches 63°C (145°F).
2 Mins Rice hot, ~80°C (176°F)
Spoon about 2 tablespoons of tare over the hot rice in the pot and fold it through gently with the paddle, so every grain glistens but none is drowned.
Season the rice lightly — the eel carries most of the sauce.
Done when: Rice glistens and tastes faintly sweet-savoury, not salty.
3 Mins Serve hot
Divide the rice between 4 warmed bowls, lay 3 pieces of eel over each, drizzle with the remaining tare, scatter green onion and dust with sansho pepper. Serve at once.
Warm the bowls first so the rice stays hot to the last spoonful.
Done when: The eel sits glossy on steaming rice, with tare pooling lightly at the edges.
Finishing Touches & Plating
Serve at once, while the rice steams and the glaze is still glossy. Put the extra tare and the sansho pepper on the table so each person seasons their own bowl.
Nutritional Physiology & Benefits
Energy
581
kcal / serving
Protein
31g
Complete AA
Carbs
72g
Complex
Fats
16g
Healthy
| Energy | 581 kcal |
| Protein | 31 g |
| Carbohydrates | 72 g |
| Fat | 16 g |
| Fibre | 1.1 g |
| Sugar | 10.3 g |
| Sodium | 1129 mg |
| Energy | 173 kcal |
| Protein | 9.1 g |
| Carbohydrates | 21.5 g |
| Fat | 4.7 g |
| Fibre | 0.3 g |
| Sugar | 3.1 g |
| Sodium | 337 mg |
Nutrition values are estimated — calculated from USDA FoodData Central values for the listed ingredients.
Vitamins & minerals: Vitamin B12 and vitamin D (eel), vitamin A (eel), B vitamins (rice), vitamin C and K (green onion).
Protein & B Vitamins
Eel is naturally rich in vitamin B12 and vitamin D, and a single serving carries about 31 g of protein.
Steady Energy
Steamed rice and eel together give slow, steady energy — filling without feeling heavy.
Omega-3 Fats
Freshwater eel supplies long-chain omega-3 fats (EPA and DHA), the same family found in oily fish.
Food Pairings
To optimize nutrient absorption and elevate the sensory depth, pair with these authentic accompaniments:
Soups
Miso Soup
A light, salty miso soup balances the sweet tare and cleanses the palate between bites of rich eel.
Vegetables
Pickled Ginger & Cucumber
Sharp pickles cut through the sweet glaze and the eel's richness, keeping each bite bright.
Drinks
Green Tea
Unsweetened green tea is the classic companion — hot, bitter and cleansing against the sweet-savoury bowl.
More Pairings
Kimosui (Clear Eel-Liver Soup)
The traditional partner for unadon in Japan: a clear, delicate soup that echoes the eel without competing with it.
Complete menu
Start with miso soup and pickled ginger, serve the unagi don as the main bowl, and finish with green tea.
Digestive Guardrails
To prevent digestive distress, sluggishness, or palate clash, avoid pairing the dish with these elements:
Extra Soy Sauce at the Table
The tare already carries about 1,130 mg of sodium per serving. Pouring more soy sauce over the bowl pushes the salt load much higher without improving the flavour. This is general information, not medical advice.
Very Sweet Drinks With the Meal
The tare is already sweet from mirin and sugar. A sugary soda or sweetened tea on top adds a lot of extra sugar to an already rich bowl — unsweetened green tea is the better match. This is general information, not medical advice.
General information only, not medical advice — consult a doctor for personal dietary decisions.
Who Should Eat It
Health Conditions — Adjust or Avoid
If you have a medical condition, consult your doctor before changing your diet.
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