Which Oil for South Indian Cooking? Groundnut, Sesame or Coconut
Traditional South Indian kitchens did not use one oil for everything. Each oil had a job. Here is a simple way to decide which cold-pressed oil to reach for.
Groundnut oil: your everyday workhorse
Cold-pressed groundnut oil (kadalai ennai) has a mild nutty aroma and works for most daily cooking: poriyal, kuzhambu, dosa, chapati and frying. It is also the usual choice for snacks such as murukku and sev.
Sesame oil: for flavour and tradition
Gingelly oil (nallennai) has a rich, toasty aroma. A spoonful gives idli podi, thokku and pickles their characteristic taste. It is also used in traditional oil baths. Use it for flavour rather than for heavy frying.
Coconut oil: coastal flavours and care
Coconut oil (thengai ennai) is the base of many Kerala and coastal Tamil dishes such as avial, thoran and fish curry, and it makes crisp banana chips. It also doubles as a hair and skin oil. In cool weather it turns solid, which is natural.
Quick guide by dish
| Dish | Oil to try |
|---|---|
| Idli, dosa, uthappam | Groundnut or sesame |
| Poriyal, kootu, sambar tempering | Groundnut |
| Idli podi, pickles, thokku | Sesame |
| Avial, thoran, fish curry | Coconut |
| Murukku, sev, bajji | Groundnut |
| Hair care and skin | Coconut or sesame |
Keep more than one oil
Many homes buy a 500 ml bottle of each oil first, see what they use most, and then move up to 1 litre bottles. Valluvam sells all three in 500 ml and 1 litre sizes, and as combo packs.