The cooking methods a cuisine relies on track the fuel that was historically available to it. Where fuel was scarce and expensive, cooking became fast; where it was cheap, cooking became slow.
Scarce fuel forces a thin pan and small pieces
A thin metal pan transfers heat to food almost immediately and wastes very little of it heating the vessel, which matters when every stick of fuel is bought or gathered.
Small, uniformly cut pieces cook through in a fraction of the time a whole item would need, since heat has a short distance to travel.
Cuisines built under fuel scarcity therefore feature intensive knife work, minutes-long cooking and a pan shaped to concentrate a small fire, which is a coherent system rather than a set of separate habits.
Abundant fuel makes long, ambient heat sensible
Where wood or coal was plentiful, a fire could be kept going all day, and the heat left in a masonry oven after baking was free to use.
That supports whole roasts, long braises and baking traditions, all of which involve holding a large mass at temperature for hours.
Bread cultures in particular depend on it, since an oven has to be brought to temperature and held there for a batch to be worth firing at all.
Communal ovens were a fuel-sharing arrangement
Firing an oven for one household wastes most of its capacity, so many regions built shared ovens that neighbourhoods used in sequence.
Dishes designed for those ovens went in after the bread, cooking gently in falling heat over several hours without any further fuel.
A whole category of slow, sealed-pot dishes exists because that residual heat was available and free, and it survives in cuisines long after the communal oven has gone.
Pressure and stacking were efficiency inventions
Sealing a pot raises the boiling point and cuts cooking time substantially, which is a direct saving on fuel rather than merely a convenience.
Stacked steaming cooks several dishes over one fire, and the steamer basket exists in many separate cuisines for exactly that reason.
Each of these solves the same underlying problem, which is why they appear independently wherever fuel was the binding constraint.
The constraint lifted but the cuisine stayed
Modern kitchens have effectively unlimited fuel, so none of these adaptations remains necessary in the sense that produced them.
They persist because the flavours and textures they produce became the point, and because the equipment, knife skills and recipes were passed on as a package.
What began as an economy is now a style, which is why techniques born of scarcity are practised in kitchens that have never faced it.