Lassi vs Chaas vs Laban: Which Yogurt Drink to Make

A guest asks for "lassi" and you hand over a thin salty glass with mint. Someone else wanted a thick sweet shake. Yogurt drinks share a base, but they are different drinks, and they work best at different points in a meal.

Our recipe library has three of them: a sweet lassi, a mango lassi and a Gulf-style laban drink. Put side by side, the differences are clear and mostly come down to how much yogurt is in the glass.

Yogurt per glass, side by side

Drink	Yogurt	Added liquid	Flavour	Texture
Sweet lassi (2 glasses)	400 g	100 ml milk	3 tbsp sugar, 2 cardamom pods	Thick, frothy
Mango lassi (2 glasses)	about 300 g	100 ml milk	About 1.5 cups ripe mango pulp, 1 to 2 tbsp sugar, pinch of cardamom	Thick, smooth
Laban drink (4 glasses)	300 g	Cold water, gradually	1/2 tsp salt, 1 tsp dried mint	Thin, light

<!-- VERIFY: amounts were read from recipe data by position; mango pulp is roughly 1.5 cups per the recipe step. Confirm on live pages. -->

The arithmetic is the point. Sweet lassi has about 200 g of yogurt per glass. Laban has about 75 g per glass, the rest being water. That is why one coats the glass and the other washes down a meal.

Where chaas fits

Chaas (also called chhaas or buttermilk in many homes) is the middle path: salted, thinned yogurt, usually with roasted cumin, and sometimes mint or green chilli. Our lassi recipe's tip describes the salty Punjabi version: skip the sugar and cardamom, blend yogurt with water, salt and roasted cumin powder, and garnish with mint.

So the dividing lines are:

• Sweet and thick: lassi.
• Salty and thin with cumin: salted lassi or chaas.
• Salty and thin with mint: laban in the Gulf style.

The names are used loosely across regions. In one household "lassi" always means the salty one, and in another "chaas" means the thin watery leftover from churning butter. Ask what the person means before you pour.

<!-- VERIFY: regional naming claims (chaas as the liquid left after churning butter) are general knowledge; confirm with a reputable food source. -->

Which one with which meal

With a heavy, oily or spicy meal, pick the thin salted version. It cuts through fat the way a sharp pickle does, and you can drink a full glass without feeling stuffed. Think of it next to biryani, kabsa or fried foods.

With a light meal or as a snack, pick the thick sweet one. After a meal of khichdi the sweet version is more like dessert.

Mango lassi is its own category. It works as a dessert or a breakfast drink in mango season, and it is not a good match for a spicy meal because the sweetness fights the heat.

Making each one right

Sweet lassi. Blend yogurt, milk, sugar and crushed cardamom on high until smooth, light and frothy (about a minute). Chill for an hour, or blend in ice. Use full-fat yogurt: our tip says low-fat gives a thinner drink.

Mango lassi. Use ripe mango pulp, about 1.5 cups. Taste the mango before you add sugar. A very ripe, sweet fruit may need none.

Laban drink. Whisk the yogurt smooth in a jug first. Then add cold water gradually, so you control how thin it goes. Stir in the salt and dried mint, and chill for 1 hour.

Do not skip the whisk. Yogurt dropped straight into water forms little white lumps that never fully disperse.

When the glass goes wrong

• Too sour. The yogurt was old. Add a spoon of sugar to a salty drink, or a little more milk to a sweet one, to take the edge off.
• Too thin. Too much water. Whisk in a spoon of fresh yogurt.
• Split or grainy. Usually from a mix of very cold yogurt and warm milk. Keep every ingredient cold.
• Flat. Salty drinks often need only a bit more salt, and a pinch of roasted cumin lifts them.

Flavour additions that work

Small additions change a lassi a lot, and you do not need many.

• Rose. A teaspoon of rose syrup in a sweet lassi gives a pink glass and a floral note.
• Saffron. A pinch steeped in a spoon of warm milk, then blended in.
• Roasted cumin. For a salted version, dry-roast whole cumin until fragrant, cool, and crush it. It tastes smokier than the packaged powder.
• Mint and a green chilli. Blend a few leaves into chaas for a sharp, cooling finish.
• Black salt. A pinch gives the sulphurous tang that many chaas drinkers expect.

Add each one slowly, taste, and stop early. A yogurt drink with too many flavours loses the clean sour taste that makes it refreshing.

<!-- VERIFY: black salt and roasted cumin as common chaas additions is general knowledge, not from our recipe data. -->

Safety notes

Use yogurt that is within its date and has been kept in the fridge. A yogurt drink made with warm water and left on the counter all afternoon is not a good idea. Serve soon after chilling, and refrigerate leftovers, drinking them within a day.

<!-- VERIFY: "within a day" for yogurt drinks is a cautious rule of thumb, not from our recipe data. -->

For more on picking yogurt, see our guide to dahi, curd, laban and hung curd.

A drinks plan for the week

• Sunday lunch with biryani: salted laban or chaas, thin.
• Weekday afternoon: plain sweet lassi, small glasses.
• Mango season weekend: mango lassi.
• Iftar table: laban, because it is light on the stomach.

Keep an eye on yogurt quantities in your pantry list. Degchi lets you mark yogurt as low, so it shows up on the shopping list before the drink days.