I ate a rice and lentil dish in a country a long way from where I grew up, made with ingredients I did not recognise, and it tasted structurally identical to something I have eaten my whole life.
That experience did more to explain what I had been cooking than any amount of cooking it had.
The same problem solved twice
Once I started looking, the pattern was everywhere. Grain plus pulse, cooked together, with fat and aromatics, appears independently in an enormous number of cuisines.
The reasons are not mysterious. Grains and pulses store well, grow in complementary conditions, and together provide something closer to complete nutrition than either does alone.
So people arrived at the same solution repeatedly, and then decorated it differently according to what grew nearby.
Which means the dish I thought of as specifically ours is a local expression of something much more general, and the local part is the seasoning rather than the structure.
What varies and what does not
The structure is remarkably stable. Grain, pulse, fat, aromatic, something sour or sharp alongside.
What varies is which grain, which pulse, which fat, and which aromatics. Rice or wheat or millet or maize. Lentils or beans or peas or chickpeas. Butter or oil or animal fat. Onion or garlic or leek or ginger.
And the sour element, which is the most consistently present and the most locally variable — yoghurt, pickle, citrus, fermented vegetable, vinegar.
Once you see the structure, you can cook the dish in almost any pantry, which is genuinely useful when travelling or when the shop is out of things.
The fat is regional and not incidental
The thing that most determines whether a version tastes like home is the fat, and it took me a long time to notice.
Ghee tastes like one place. Olive oil like another. Mustard oil, coconut oil, animal fat — each is immediately identifiable and each recolours the entire dish.
This is why substituting the fat is the change that makes a dish stop tasting right, more than substituting the vegetable or the spice.
It also means that if you want to cook something from elsewhere and get close, the fat is the ingredient to get right first, before worrying about anything more obscure.
The comfort function is universal
The other thing I noticed, in that restaurant and since, is that this category of dish occupies the same emotional slot everywhere.
It is what people eat when unwell, when tired, when broke, when they want something uncomplicated. Every culture I have asked about has a version and describes it in almost the same terms.
The soft texture, the mild seasoning, the warmth, and the fact that it requires no effort to eat. These recur too consistently to be coincidence.
What this changed in my cooking
Practically, it made me much less precious about ingredients.
I used to consider a recipe unmakeable if I did not have the specific pulse it called for. Now I substitute freely within the structure, and it works, because the structure is what carries the dish.
It also made me more attentive to what each element is doing. If I understand that the sour thing is there to cut the richness, I can use whatever sour thing I have rather than the specified one.
And it made me more interested in other people's versions, because they are variations on something I already know rather than foreign objects.
The caution
Recognising a common structure is not the same as saying these dishes are the same, and it would be crass to flatten them that way.
The particulars are the culture. The specific pulse, the specific spice, the way it is served, who cooks it, what it is eaten with, what occasions it belongs to — all of that is meaningful and none of it is interchangeable.
What is shared is the underlying problem and the shape of the solution. What differs is everything that makes it belong to somewhere.
That distinction is worth holding onto, and it is the thing I would have got wrong if I had drawn a simpler conclusion from that meal.
Cooking it in an unfamiliar kitchen
The practical payoff came later, on a trip where I had a kitchen and none of my usual ingredients.
Local rice, local lentils, butter instead of ghee, and a spice cupboard containing almost nothing I recognised. What I made was not the dish from home and it was recognisably the same thing, and it was good.
That was the moment the structural idea stopped being an observation and became useful.
Since then I have stopped carrying ingredients when I travel, which I used to do, and started asking what the local version of each element is. The answers are usually available in the nearest shop and are usually better than what I would have brought.