Keerai, Explained: A Field Guide to Chennai's Leafy Greens

In most English-language recipe writing, "greens" means spinach and maybe kale. Walk into a Chennai kitchen and "keerai" opens up into a dozen distinct leaves, each with its own texture, cooking time and pot. If you've only ever bought a single bunch labelled "spinach" at a supermarket, the keerai section of an Anna Nagar vegetable shop can look like an unlabeled puzzle. It isn't — once you know what to look for.

Start with how the leaf feels, not just how it looks

Most keerai bunches look similar from a distance — a fistful of stems with leaves fanning out. The differences that matter for cooking are texture and stem thickness. Some greens have soft, almost delicate leaves that wilt down to almost nothing in the pan within a minute. Others have thicker stems that need to be chopped separately and given a head start in the kadai before the leaves go in. Picking up a bunch and running a leaf between your fingers tells you more than reading the name off a signboard.

The everyday keerai: mulai, siru, paruppu

These are the greens that show up most often in an ordinary Tamil household's weekly rotation, usually made as a simple poriyal — sautéed with mustard seeds, a little urad dal, green chilli and grated coconut, finished dry rather than as a gravy. They cook down fast, so the usual method is to wash and chop the leaves fine, sauté the tempering first, then add the greens last and cook on a high flame just until they collapse and release their water. Overcooking is the main mistake — five minutes on a hot pan is usually enough.

Paruppu keerai and the lentil pairing

As the name suggests ("paruppu" is lentil in Tamil), this green is traditionally cooked with moong or toor dal rather than on its own — the greens and the dal go into the same pot and are mashed together once soft, then given a light tempering. It's a weekday staple precisely because it does double duty as both the vegetable and part of the protein course in one pan.

Ponnanganni — the one with the reddish stem

Ponnanganni is easy to spot once you know the tell: the stems often carry a faint reddish or purplish tint, and there's a red-stemmed variant sold separately for cooks who prefer it. It has slightly succulent, fleshy leaves compared to the thinner mulai keerai, and holds up well in a kootu — cooked down with lentils and a light coconut-cumin paste rather than a dry poriyal. Some households also make a simple ponnanganni thuvaiyal, grinding the cooked greens with coconut and tempering it as a side for rice.

Mudakathan keerai and the greens with a reputation

A handful of keerai varieties — mudakathan keerai, vallarai, thoothuvalai, keezhanelli — carry strong folk reputations in Tamil households and are treated almost as much as herbs as vegetables. Whatever else is said about them at home, on the cutting board they behave like any other leafy green: wash thoroughly (these often grow closer to the ground and carry more grit), chop, and cook briefly with a simple tempering. Mudakathan in particular has a slightly bitter, distinctive flavour that mellows with coconut and a touch of jaggery in the pan, which is the traditional way most families serve it.

Murungai keerai — the drumstick tree's other harvest

Murungai keerai comes from the same tree that produces drumstick pods, but the leaves are a completely separate purchase and a completely different dish — small, feathery leaflets that need to be stripped off their thin central stems before cooking (a genuinely fiddly step; budget a few extra minutes). Once stripped, they cook into one of the quicker, more delicate poriyals in the keerai family, usually with just a light tempering, grated coconut, and not much else needed to dress it up.

Buying and storing keerai

• Buy keerai the day you plan to cook it, or the next day at the latest — leafy greens wilt faster than almost anything else in the cart.
• Look for firm, unblemished leaves and stems that snap rather than bend limply.
• Store unwashed in the vegetable drawer of the fridge, wrapped loosely in a damp cloth or paper — washing in advance shortens its life.
• Wash thoroughly just before cooking, swishing in a large bowl of water rather than a quick rinse under the tap, since keerai carries more soil than firmer vegetables.
• Chop stems and leaves separately if the stems are thick, and add the stems to the pan a minute or two ahead of the leaves.

Between the everyday poriyal greens, the kootu-friendly ones like ponnanganni, and the tree-leaf harvest of murungai keerai, the keerai shelf covers a lot more cooking ground than a single word suggests. Browse the full keerai category to see what's in stock this week, or order for delivery — Express delivery in about 60 minutes.