What You Are Making
As evening comes and the cart lights flicker on, the first thing you hear is butter spitting on a flat griddle. A moment later you smell it, toasty and sweet, with chilli dust tickling the back of the throat. Masala corn is the plainest cart food there is: a cup of hot buttery kernels, sprinkled with spice and eaten with a little wooden spoon on the move. You find it at night markets, on seafront walks and on railway platforms in every part of the country, generally from a cart that has a steamer for whole cobs at one end and a griddle at the other. Few snacks cost so little to make, and that is part of why it is everywhere. Cooks follow one of two roads. In the first, corn is boiled or steamed and tossed in butter and spice away from the fire. In the second, kernels are fried on a hot griddle with butter and spice cooking right alongside, which scorches a few of them lightly. The recipe below takes the second road, since it tastes of more, and it notes the boiled version for a lighter bowl.
The Dish’s Backstory
Unlike many chaat dishes, masala corn has no single home region. It relies on corn varieties that spread across India only from about the middle of the twentieth century, well after pani puri and bhel puri had settled into their regional shapes. It became an all-purpose cart snack once corn was cheap and easy to buy, and today a cup in Mumbai, Delhi, Bangalore or Kolkata looks much the same. The differences are small. The north uses more butter and chilli, parts of the south and west favour extra lemon and sometimes grated coconut, and the seaside often settles for plain salt and chilli, because people eat it on the beach. Together with roasted peanuts and cut fruit, it counts among the few street snacks that cross every regional chaat tradition while belonging to none of them.
At the Stove, Step by Step
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Prep
Boil the corn first
If you begin with fresh cobs, simmer them whole in salted water for 6 to 8 minutes, until a kernel gives easily under a fingernail but still has some resistance, then cool them and cut the kernels off the cob. Frozen kernels need just 4 to 5 minutes in boiling water or a steamer. Drain thoroughly. Water left on the kernels turns to steam in the pan and keeps them from browning.
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Cook
Sizzle the kernels in butter
Let the butter foam in a wide skillet or on a griddle over medium-high heat, then spread the dry kernels across it in a single layer. Leave them still for a full minute so some can catch gold patches, then stir. In total, give them 4 to 5 minutes, stirring now and then.
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Cook
Toast the spices on the corn
Lower the flame slightly and scatter on the chilli powder, chaat masala, roasted cumin, pepper and salt. Keep turning the corn for 30 to 45 seconds so the spice sticks to each kernel and toasts a touch in the butter, without lumping in one place or burning.
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Serve
Lemon, coriander, and straight into cups
Slide the pan off the heat. Add fresh green chilli if you like, then the lemon juice and the coriander, and stir. Taste it and fix the salt, heat or lemon until sour, salty and hot arrive together. Fill cups while the corn is steaming, because as it cools the butter sets and most of the appeal is gone.
Stand-ins If You Are Short
Frozen kernels do the job as well as fresh, and most kitchens will use them once the corn season is over. They need not be fully thawed before they go in the pot; just boil them a minute or two longer. If you want to avoid dairy, use oil in place of butter, though butter supplies the richness the dish is known for. A handful of grated fresh coconut at the end is a regular coastal addition in parts of Maharashtra and Karnataka. Tamarind pulp can replace lemon for a rounder, less piercing sourness. For a smoky flavour, char the whole cobs directly over a flame for a few minutes before you cut the kernels off, and fry them as usual.
Dial the Chilli Up or Down
Since the spice goes on at the end and is not baked into a sauce, the heat is easy to move in either direction. For a mild cup, use only a pinch of red chilli powder, skip the fresh chilli, and let the chaat masala and lemon do the talking. For a hot one, pick a stronger chilli powder, add the chopped green chilli, or finish with a few drops of vinegary chilli sauce, as some Mumbai vendors do. Black pepper stings differently from chilli powder, so keep it even in a gentle version.
Where It Goes Wrong
Undrained boiled corn is the usual culprit. It meets the butter wet, steams and never colours. Another is adding chaat masala and lemon while the pan is still on the fire, which dulls both; they should go in at the end, away from the heat. Then there is timid salting. Corn is naturally sweet, and without firm seasoning it reads as buttered sweet corn rather than a savoury snack. Finally, corn left waiting before it is served turns cold and slightly rubbery as the butter hardens, so cook it when you are ready to eat. Also avoid crowding the pan with too much corn at once. A deep pile steams from the middle, so cook in two batches if you are making a large amount.
Leftovers, Kept and Revived
Keeping: Leftover masala corn stays good in a sealed container in the refrigerator for up to 2 days, though it tastes best fresh because cold sets the butter and firms the kernels. This is not a dish to cook far ahead, since the hot butter and the fresh lemon and coriander fade quickly. To save time, boil and drain the kernels a day early and chill them, then finish with butter and spice just before serving. Do not freeze the cooked corn, since butter and spice separate on thawing and the kernels turn watery.
Reviving: Tip leftovers into a dry or lightly buttered skillet over medium heat for 2 to 3 minutes, stirring often, until hot; a few kernels will crisp again. The microwave does it too, but the corn comes out a little wet instead of browned. Refresh with lemon and a pinch of chaat masala afterwards, as both fade in the cold.
Handle This Part Carefully
Nothing about this vegetarian snack calls for special measures beyond a clean kitchen. Cook the corn until done, and move leftovers into the refrigerator within two hours, since warm buttered kernels left out in hot weather are asking for trouble. When you begin with fresh cobs, rinse them before boiling to clear the dust, husk fibres and silk.