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MORTAR & KETTLE
Apothecary of Flavor
MEAL IDEAS · №041

Japanese Curry

kare raisu from scratch, roux and all

The dish the curry powder exists to make. A Japanese curry is built in two vessels: a roux browned in a skillet, and a pot where onions go dark, meat browns, and the whole thing simmers until the beef gives. The roux is what makes this Japanese rather than Indian, a French technique that arrived through the same channel the spices did, and it is what gives the sauce its gloss and its weight against the spoon. The apple and the honey are not garnish. Grated in early, they cook out of sight and leave behind the low, unplaceable sweetness that sits under every plate of kare raisu. Make the roux first and set it aside, then give the onions the forty slow minutes they actually need.

Mediumabout 3 hoursForgiving
UmamiEarthySweetHotFruityWarmingDigestiveImmuneAnti-inflammatory
Japanese Curry · finished

Method

Check off each step as you go. Your progress is saved. Amounts below already match your batch size.

Roux: melt the butter in a skillet over medium-low heat, whisk in the flour, and stir until it turns the colour of peanut butter. Off the heat, stir in 3 tbsp of the Japanese Curry Powder and set the skillet aside.
55 gunsalted butter30 gall-purpose flour
15 min
Caramelize the onions: heat the oil in a heavy pot over medium-low and cook the sliced onions with a pinch of salt until they are deep amber. This is the long, unglamorous part and there is no shortcut through it.
15 mlfrying oil2 mediumonions6 gsea salt
40 min
Brown the meat: raise the heat and sear the beef in batches so it colours instead of steaming. Add the garlic and grated ginger for the last 30 seconds.
500 gbeef3 clovesgarlic6 gfresh ginger
10 min
Simmer: add the stock, grated apple, carrots, and salt. Bring it to a boil, skim, then drop to a bare simmer with the lid ajar. Chicken thigh needs only 25 minutes here.
950 mlbeef stock1 apple2 carrots6 gsea salt
75 min
Potatoes: add the potatoes to the pot and simmer until a knife meets slight resistance. Any softer and they will fall apart in the thickening.
2 waxy potatoes
15 min
Temper the roux in: whisk about 2 cups of the hot broth into the roux skillet a splash at a time, until it is loose and smooth, then return all of it to the pot. Add the soy sauce, tomato paste, and honey.
15 mlsoy sauce15 mltomato paste5 mlhoney
Thicken: simmer uncovered, stirring, until the sauce holds a line when you drag a spoon through it. Salt to taste.
20 min
Rice: rinse the jasmine rice until the water runs clear, then steam it and let it rest covered for 10 minutes. Serve the curry over it.
300 gjasmine rice
20 min
Depth is patience you can taste. Trust the process.
THE MORTAR & KETTLE METHOD

The chemistry

SKELETAL STRUCTURES

11 compounds carry this recipe. Here is what each one does and, where we have it, what it actually looks like.

C₈H₁₂N₂
pyrazines
C₈H₁₂N₂

A Maillard mixture built three separate times in this pot: in the onions going amber, in the crust on the seared beef, and in the flour toasting through the butter. It is the roasted, savoury floor everything else is stacked on.

UmamiEarthy
C₅H₉NO₄
glutamic acid
C₅H₉NO₄

Three deliberate sources of free glutamate stacked on one another: the stock, the fermented soy, and the concentrated tomato. Each is doing the same job from a different direction, and together they are why a spoonful of this tastes finished rather than merely spiced.

Umami
C₆H₈O₃
sotolon
C₆H₈O₃

Carried in from the fenugreek in the blend, stirred into the roux off the heat so it never scorches. This is the molecule that makes the finished pot smell like curry from the next room.

EarthySweet
C₄H₈O₂
butyric acid
C₄H₈O₂

The short-chain acid behind butter's particular richness. Fifty-five grams of it is the fat half of the roux, and it is what keeps the sauce tasting round rather than merely thick.

Umami
C₆H₆O₃
maltol
C₆H₆O₃

Formed as the flour browns to peanut-butter colour in the skillet. Maltol reads as caramel sweetness even with no sugar present, which is half the reason a browned roux tastes better than a pale one.

Sweet
C₆H₁₂O₆
fructose
C₆H₁₂O₆

The grated apple and the teaspoon of honey both disappear into the sauce and leave their sugar behind. This is the low sweetness that distinguishes Japanese curry from every other curry, and it is meant to be felt rather than identified.

SweetFruity
C₂₁H₂₀O₆
curcumin
C₂₁H₂₀O₆

Turmeric's pigment arriving with the roux and staining the whole pot that particular ochre brown. It is as much of the dish's signature as anything on the tongue.

EarthyAnti-inflammatory
C₁₈H₂₇NO₃
capsaicin
C₁₈H₂₇NO₃

The two dried chilies in the blend, diluted across four servings. It registers as warmth in the chest rather than heat on the tongue, which is the level a Japanese curry is aiming for.

HotWarming
C₁₇H₂₆O₄
gingerol
C₁₇H₂₆O₄

The fresh root goes in at the end of the sear, where 30 seconds is enough to take its raw edge off without cooking away the pungency. The blend already carries dried ginger; this is the brighter half of the same plant.

WarmingDigestive
C₆H₁₀OS₂
allicin
C₆H₁₀OS₂

Formed the instant the cloves are minced and largely spent by the end of a long braise. Its half minute in the hot pot is what threads garlic through the base rather than leaving it on top.

Immune
C₄₀H₅₆
β-carotene
C₄₀H₅₆

The orange in the carrots, and one of the few nutrients a long simmer actively helps: heat breaks down the cell walls holding it, and the fat already in the pot is what carries it.

Immune

Nutrition

ESTIMATED · WHOLE RECIPE

A rough estimate for everything this recipe makes: the whole batch, not one serving. It moves with the batch size you set above.

Nutrition Facts
Whole recipemakes 1 pot
Amounts are for the entire recipe, not one serving.
Calories3223
% Daily Value*
Total Fat 114g147%
Saturated Fat 52g261%
Trans Fat 0g
Cholesterol 443mg148%
Sodium 7326mg319%
Total Carbohydrate 392g142%
Dietary Fiber 23g81%
Total Sugars 52g
Protein 149g298%
Vitamin A 1432mcg159%
Vitamin C 59mg66%
Calcium 385mg30%
Iron 21mg116%
Potassium 5099mg108%
* Percent Daily Values are based on a 2,000 calorie diet.

An estimate, summed from USDA reference values (16 of 16 ingredients counted). Oil for frying and water for boiling are left out; everything else is counted as listed. Real numbers shift with brand, ripeness, and how it's cooked. Treat it as a ballpark, not dietary or medical advice.

Storage

SHELF LIFE
  • It is better the next day, once the spices have settled into the sauce and the starch has finished thickening it.
  • Keep it refrigerated in a covered container and eat within 3 days. It reheats gently with a splash of water.

On the table together

THE INDEX, LINKED

This recipe is part of a set: follow the thread through the blends it uses and what it's served with.

FROM THE JOURNAL

The reading behind this recipe