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Home · Recipes · Chicken curry
Chicken curry
Indian Spiced One pot

Chicken curry

Frying the spices in fat is not a step but half the recipe: their aromas dissolve in oil and not in water.

Chicken dishes · Indian · One pot · Freezes well · For guests

60 minTime
606Kcal / serving
2423Total kcal
Preparation
20 min
Cooking
40 min
Difficulty
Practised hand
Cost
Middling
Season
All year
Where this dish comes from

The basic technique of the Indian kitchen is the tadka or bagar: spices fried briefly in hot fat so their aroma molecules pass into the oil. The reason is chemical — most of the aromatic compounds in cumin, coriander, turmeric and black pepper are fat-soluble and not water-soluble. Spices dropped into water give their colour and withhold most of their smell. The Turkish rule about frying tomato paste in oil is the same physics.

Method

Before the heat goes on
  • Combine all the spices in a small bowl: there is no time to measure at the pan.
  • Cut the chicken into 3 cm cubes.

You will need: A heavy-based pan

  1. Fry the onion in the oil for twelve minutes, to a golden brown.

    Look for Deep gold, and down to about a third of its volume.

    Why The body of a curry comes from the onion: cooked long it gives the sauce both its caramelised sugar and its dissolved texture. Under-cooked, the curry stays thin and sharp.

    Starch gelatinised The granules soaked up water, swelled and burst into a network. It has thickened, and it will firm further as it cools. no way back

  2. Stir the garlic and ginger for a minute, then add ALL the spices and fry them for FORTY-FIVE SECONDS.

    Look for The smell should hit you and the spices foam in the oil. The moment the colour starts to darken, in goes the tomato.

    Why The aroma molecules dissolve into the fat in about forty-five seconds; by ninety the same molecules break down and turn bitter. It is the shortest and the most critical step in the recipe.
    If it went wrong

    Once the spices have darkened the bitterness stays: empty the pan, wash it and start again. This step has no rescue, only prevention.

    Starch gelatinised The granules soaked up water, swelled and burst into a network. It has thickened, and it will firm further as it cools. no way back

    Maillard is running Amino acids have met reducing sugars. The crust, the roasted flavour and that smell all come from here. no way back

    Frying dynamics Surface water is flashing to steam and pushing outward — that is the shield keeping the oil out. no way back

    The oil is under 170 °C. No shield forms, so the food soaks up fat and goes soggy.

  3. Add the tomato and cook eight minutes, until the oil separates at the edges.

    Look for An orange-red ring of oil should appear around the edge of the pan.

    Why The oil separating is the sign the Indian kitchen looks for: the tomato’s water has gone, the spices are fully in the fat, and the base is ready. Until then the sauce is raw.

    Starch gelatinised The granules soaked up water, swelled and burst into a network. It has thickened, and it will firm further as it cools. no way back

  4. Add the chicken for five minutes, then the hot water and salt; cover and cook eighteen minutes on a low flame.

    Look for The chicken should pull apart easily and the sauce coat the back of a spoon.

    Why Thigh has to pass 80 °C and does so in eighteen minutes. The lid keeps the liquid in and stops the sauce reducing too far.

    Starch gelatinised The granules soaked up water, swelled and burst into a network. It has thickened, and it will firm further as it cools. no way back

    Salt · 0.54% Low. Everything reads flat and nothing steps forward.

  5. Off the heat, loosen the yoghurt with a spoonful of the hot sauce, stir it in and DO NOT boil it.

    Look for The sauce should lighten to cream; visible specks mean it has split.

    Why Yoghurt splits above 85 °C, and in an acidic sauce that threshold is lower still. Off the heat the pan is already below 80.
    If it went wrong

    If it splits, blitz it fifteen seconds: the look comes back and the taste is unchanged.

    Starch gelatinised The granules soaked up water, swelled and burst into a network. It has thickened, and it will firm further as it cools. no way back

    Salt · 0.48% Low. Everything reads flat and nothing steps forward.

What the model could follow

This recipe was run through the engine step by step — what goes in when, and at what temperature and for how long. The reactions above come from that run.

peak 165 °C · 46 minutes · engine 1.0.0 · confidence low

What can go wrong here

The yoghurt sauce curdled
What happened

The yoghurt passed 85 °C. The casein micelles lost their charge, the protein clumped and released the water it was holding. Once split, it does not come back.

By the numbers

Stabilise 500 g of yoghurt with a tablespoon of starch and one yolk, stir in one direction, never boil.

Without a thermometer

Catch the threshold by eye: the moment a few large bubbles appear on the surface you are around 85 °C, take it off. The sauce is ready when it coats the back of a spoon — draw a line with your finger and the line should hold.

After the heat goes off

Serving

Hot, with rice and plain yoghurt beside it: milk fat and protein are the only things that cut the heat.

Keeping · 3 days

Three days in the fridge and markedly better on the second, as the spices settle into the sauce.

Cooling and reheating

Eight minutes on a low flame without boiling, or the yoghurt can split again.

Freezes

Three months, but freeze it without the yoghurt and stir that in at the end of reheating.

What is left

The leftovers go into bread, over rice or into a börek.

For a child

The hot spices mean a child wants a separate portion. For 12–36 months leave out the red and black pepper; turmeric and cumin can stay, since neither is hot. Lift their share before the salt. Spiced food suits a baby under one provided there is no salt and no heat.

If you have not got it
  • Yoghurt → Desiccated coconut (unsweetened) Coconut milk is the classic alternative and cannot split; the sauce comes out sweeter and richer.
  • Chicken thigh (skin on) → Chickpea Cooked chickpeas make it vegetarian, and the last eighteen minutes drop to eight.
Where to go from here
Taste profile

What it tastes like

No axis sits clearly above the average: a balanced recipe.

  1. Sweet 15
  2. Salty 8
  3. Sour 16
  4. Bitter 14
  5. Umami 25
  6. Heat 10
  7. Richness 20
  8. Aroma 50

This profile is computed rather than measured: the role-weighted average of its ingredients’ taste vectors, shifted by what the cooking does. The thin line is the database average on that axis.