Sabja seeds are the small black seeds of sweet basil, known across India as tukmaria, basil seeds or kamakasturi. They are used as a food ingredient, not eaten dry. Soaked in water for ten to fifteen minutes they swell, turn translucent grey and grow a soft jelly coat, which is why they are added to falooda, nannari sarbath and lemon juice.

What sabja seeds actually are

Sabja seeds come from Ocimum basilicum, the sweet basil plant. They are not the same as the seeds of holy basil or tulsi, which Indian households grow in the courtyard, although the two get mixed up constantly in conversation and in shop labels.

Dry, the seeds are tiny, matte black and shaped like a flattened teardrop. They look close enough to chia seeds that people swap the names, but chia is grey-brown and speckled, and sabja is uniformly black and a shade smaller.

The names change as you move around the country. North Indian kitchens say sabja or tukmaria. In Tamil Nadu and parts of Kerala you will hear kamakasturi or thiruneetru pachilai vidai. Karnataka and Maharashtra often just say basil seeds. All of these point at the same packet.

Our 100g pack of sabja seeds at Rs 94.50 is cleaned and sieved, so you are not picking stalk bits and husk out of your glass before you can use it.

How sabja seeds behave in water

This is the whole point of the ingredient. Sabja seeds have a hydrophilic outer layer, meaning the surface pulls in water and holds it. Within a few minutes of hitting liquid, each seed is wrapped in a clear gel.

The seeds swell to many times their dry size. A single teaspoon of dry seeds turns into a surprising amount of soaked material, which is why most drink recipes call for a teaspoon and not a tablespoon.

Once soaked, the black centre of the seed stays visible inside its transparent jacket. That little black dot suspended in jelly is the look you see floating at the top of a falooda glass or a roadside sarbath.

Soaked seeds also stay suspended in liquid rather than sinking to the bottom, because the gel coat makes them close to the density of water. In a tall glass they spread through the drink instead of collecting in a sludge at the base.

What they taste like

Almost nothing, and that is useful. Sabja seeds are close to flavour neutral with a faint, barely-there herbal note if you chew a mouthful on their own.

Texture is what they contribute. You get a soft pop between the teeth, a slippery jelly mouthfeel and a very mild crunch at the centre of the seed. In a cold drink this reads as refreshing in the way tapioca pearls do in bubble tea.

Because they carry no strong taste of their own, they do not fight with rose syrup, nannari root syrup, lemon, jaggery or milk. They take on whatever the drink is doing.

How to soak sabja seeds properly

Soaking is simple but people rush it and end up with half-hard seeds.

• Take one teaspoon of dry seeds for one tall glass of drink.
• Add about half a cup of plain room-temperature water. Use far more water than seeds, since they expand a lot.
• Stir once so clumps break up. Dry seeds like to stick together in a lump.
• Leave for ten to fifteen minutes. Fifteen is safer.
• They are ready when every seed is ringed in clear gel and nothing looks dry black and hard.
• Pour off the extra water if you want, or add the whole thing to the drink. Most households just tip it in.

Do not soak in hot water thinking it will go faster. Hot water makes the gel stringy and the whole mass clings together. Cold or room-temperature water gives you cleanly separated seeds.

Soaked sabja keeps in the fridge for a day in a covered steel or glass container. After that the gel starts to break down and go slimy, so soak fresh when you can. It takes a quarter of an hour.

Never eat the seeds dry or stir them into something you drink immediately. They will swell wherever they are, and a mouthful of dry seeds is an unpleasant gritty experience. Soak first, every time.

Indian drinks and dishes that use sabja seeds

Falooda

Falooda is the most recognised use. Layer rose syrup at the bottom of a tall glass, add soaked sabja, then falooda sev, chilled milk and a scoop of ice cream on top. The seeds sit as a visible band and give the drink its signature texture.

Nannari sarbath

South Indian summer in a glass. Nannari root syrup, cold water, a squeeze of lemon and a spoon of soaked sabja. Street vendors in Chennai and Madurai stir this up by the hundred through April and May.

Lemon sarbath and jal jeera

Plain nimbu pani with soaked sabja becomes something more interesting. The same applies to jal jeera, where the seeds float among the cumin and mint.

Rooh Afza and milk drinks

Rooh Afza with chilled milk and soaked sabja is a standard Ramzan evening drink in many Indian homes. The seeds work equally well in badam milk or a plain sugar-and-cardamom milk.

Lassi, buttermilk and curd rice

Sweet lassi takes sabja nicely. Some Gujarati and Rajasthani kitchens add a spoon to chaas as well. A small quantity stirred into curd works too, though the texture divides opinion.

Desserts and kulfi

Sabja goes into sabudana kheer, basundi, rose kulfi and the odd fruit custard. It also turns up stirred into chilled fruit salads and watermelon juice.

If you are putting together a summer drinks shelf, a 100g packet of sabja seeds will cover a lot of glasses, since each one needs only a teaspoon.

Buying and storing sabja seeds

Look for seeds that are uniformly black and dry, with no clumping and no musty smell. Clumping means moisture got in, and damp seeds lose their swelling behaviour.

Store dry seeds in an airtight glass or steel jar away from the stove and away from the sink. Humidity is the main enemy in Indian kitchens, especially through the monsoon. A dry jar in a cool cupboard keeps them fine for months.

Do not keep the dry seeds in the fridge. Condensation each time you open the container will do more harm than room temperature storage ever would.

Farm2Home delivers across India, so you can order sabja seeds along with the rest of your monthly kirana instead of hunting through three shops for them in peak summer when stock runs out.

Sabja seeds and chia seeds are not interchangeable

They behave differently in a glass. Sabja swells in about ten minutes and goes fully soft. Chia takes twenty to thirty minutes and stays a bit firmer in the middle.

Chia also makes a thicker, more pudding-like gel, which is why it suits overnight soaks and thick smoothies. Sabja gives a looser gel that suits thin, cold, pourable drinks.

You can substitute one for the other in a pinch, but expect a different texture and a different soaking time.

Frequently asked questions

How long should sabja seeds be soaked?

Ten to fifteen minutes in room-temperature water. They are ready when every seed has a clear gel coat and no hard black grain is left. Longer than twenty minutes is fine but adds nothing.

Can I eat sabja seeds without soaking?

No. Dry seeds swell on contact with any liquid, so always soak them in water first. Dry seeds in the mouth feel gritty and stick to the throat.

Are sabja seeds and chia seeds the same thing?

No. Sabja is sweet basil seed, uniformly black and smaller. Chia is grey-brown and speckled. Sabja swells faster and forms a looser gel.

Are sabja seeds the same as tulsi seeds?

Not quite. Sabja comes from sweet basil. Tulsi is holy basil, a different plant. Indian shops sometimes label sabja as tulsi seeds, but what you want for falooda is sabja or kamakasturi.

How much sabja should I use in one glass?

One teaspoon of dry seeds per tall glass. They expand considerably, so a tablespoon will leave you with a glass of jelly rather than a drink.

What is the price of sabja seeds at Farm2Home?

A 100g pack of sabja seeds costs Rs 94.50 and ships anywhere in India.

Can soaked sabja seeds be stored?

Keep them covered in the fridge and use within a day. The gel coat breaks down after that and the texture goes slack, so fresh soaking is better.