A taste that was described late
The savoury quality now generally called umami was identified and named comparatively recently, and the Western culinary conversation about it has been dominated by ingredients from a few specific cuisines — fermented soy, cured fish, aged cheese, dried mushrooms. Indian cooking rarely features in that conversation, which has led to an odd assumption that it is somehow a cuisine without much umami.
That is wrong, and demonstrably so. The compounds responsible are present throughout Indian cooking in ingredients selected over a very long time by cooks who noticed that certain things made food taste more substantial. They simply had no reason to group those ingredients under one heading, because the category did not exist.
What produces the sensation
The savoury taste is triggered principally by glutamate, an amino acid that occurs naturally in a great many foods and is released in larger quantities when proteins break down. That breakdown happens during ripening, drying, fermentation and long cooking, which is why aged, dried and fermented foods so consistently taste savoury.
A second group of compounds, certain nucleotides found in meat, fish and some vegetables, produces relatively little savouriness alone but multiplies the effect considerably when present alongside glutamate. This synergy is why combinations of savoury ingredients so often taste more than the sum of their parts, and it is a real and well-documented effect rather than a cook cooking well.
Nothing about either compound is exotic. They are ordinary constituents of ordinary food, and the question in any cuisine is simply which ingredients happen to be rich in them and how the cooking concentrates them.
Where they come from in an Indian kitchen
Tomato is the most obvious source and the most widely used. Ripe tomatoes are notably high in glutamate, and cooking them down concentrates it further, which is a substantial part of why a tomato base makes a gravy taste complete in a way that the same gravy without one does not. Sun-dried tomato and tomato paste are more concentrated again.
Slowly browned onion is the second. Long cooking breaks down proteins and develops browning reactions that produce savoury compounds, which is the real reason a properly cooked onion base is worth the time it takes. Fermented batters contribute their own, since fermentation is exactly the process that liberates free amino acids.
Then there are the less obvious ones. Dried and fermented fish preparations in coastal and northeastern cooking are intensely savoury. Asafoetida contributes sulphur compounds that read as savoury depth. Yoghurt, particularly older and more sour yoghurt, brings some. Dried mushrooms and certain dried vegetables used regionally bring a good deal.
Why concentration matters more than the ingredient
The pattern connecting all of these is that they are foods where something has been broken down or removed. Drying takes out water and leaves the compounds behind at higher concentration. Fermentation actively converts proteins into free amino acids. Long, slow cooking does a slower version of the same thing.
This reframes several standard techniques. Cooking a masala down until the fat separates is, among other things, a concentration step. Simmering a gravy for a long time is another. A dish that tastes thin after an hour of cooking has usually not been reduced enough, and the correction may be time rather than an additional ingredient.
It also explains why a curry improves overnight in this respect specifically. Nothing new has been created, but the components have had time to distribute and the perception of savouriness becomes more even and more prominent as the sharper flavours settle.
Using this deliberately without adding anything unusual
The most useful application is diagnostic. When a dish tastes correctly seasoned and still somehow empty, the missing element is often savoury depth rather than salt, and adding more salt in that situation makes the problem worse while appearing to help briefly.
The fixes are all ordinary. More reduction. A longer and browner onion base. A little tomato paste rather than more fresh tomato, since the paste supplies concentration without additional water. A pinch more asafoetida in the tempering. In non-vegetarian cooking, a stock made from bones rather than water.
And it is worth resisting the idea that any of this requires ingredients from elsewhere. The cuisine has its own well-established sources and its own methods of concentrating them, developed by cooks working entirely by taste. Naming the mechanism is useful because it tells you what to reach for when something is missing. It does not mean anything was missing before the name existed.
Common questions
Is added monosodium glutamate the same thing?
Chemically the glutamate is the same compound found naturally in tomatoes and other foods, and it produces the same taste. What it does not bring is the accompanying flavour, texture and body of the ingredient it would replace, which in most cooking is a large part of what you actually wanted.
Why does my vegetarian gravy taste less full than a meat one?
Meat contributes both glutamate and the nucleotides that multiply its effect, along with gelatine that changes the texture. The vegetarian equivalents are concentration and fermentation — reduced tomato, a deeply browned onion base, asafoetida, and a longer cooking time.
Does adding more salt fix a flat dish?
Sometimes, and often it is the wrong lever. Salt makes existing flavours more prominent but cannot supply savoury depth that was never there, and a dish repeatedly salted in search of that depth ends up too salty and still hollow.
Editor, Wah Taste
Sanaya has written about everyday cooking, street food, spice & pantry for most of the last decade and prefers a plain explanation to a clever one.
