Homemade Tamarind Soda: Tangy, 61 Cents a Glass

Tamarind is the flavor I reach for when every other soda in the fridge tastes like candy. It is sour first, sweet second, and a little earthy underneath, and it makes a glass of sparkling water taste like a drink you planned. The bottled version is good and expensive. The homemade version below takes one short simmer, keeps for days in the fridge, and costs me 61 cents a glass. The syrup proportions follow the classic sharbat structure, half a cup of tamarind paste to a cup of sugar, scaled up for a party batch, the same ratio used in this tamarind sharbat recipe, and the serving style follows the Thai nam makam soda, 3 tablespoons of syrup under sparkling water, from Pranee's Thai Kitchen.

The syrup: 2 minutes of simmering, then hands off

Combine 3/4 cup of tamarind paste, 1 and 1/2 cups of brown sugar, 3/4 cup of water, and a pinch of salt in a small saucepan. Simmer over medium-low heat, stirring, until the sugar dissolves completely and the syrup looks like maple syrup, about 2 minutes of actual simmering once it starts. It thickens a little more as it cools. Pour it into a clean jar and refrigerate. You get about 1 and 1/2 cups of syrup, which is 24 tablespoons, exactly 8 glasses at 3 tablespoons each. The method is the same short-simmer logic as my homemade ginger beer: dissolve, do not boil it to death, and let the fridge do the rest.

The glass: syrup first, fizz last

Put ice in a tall glass. Add 3 tablespoons of tamarind syrup and the juice of a quarter of a lime. Pour in 6 ounces of cold sparkling water, stir once, gently, and drink it before the fizz settles. Tamarind is assertive, so taste the first glass before you adjust: if it puckers too hard, drop to 2 tablespoons of syrup and add a second pinch of salt, which rounds the sour edge without more sugar. If you want heat, a thin slice of fresh ginger in the glass does it without changing the syrup. Serve it the same day you open the sparkling water; the syrup keeps, the bubbles do not, which is the same lesson the apple shrub soda taught me about vinegar drinks generally.

My batch costs, itemised

Prices are my local store prices in Knoxville, TN, in October 2026, and the math is shown so you can redo it with yours.

Ingredient (batch of 8 glasses)	My cost
Tamarind paste, 6 oz of a 14 oz jar at $4.29	$1.84
Brown sugar, 1.5 cups	$1.24
Sparkling water, 48 oz of a 2-liter bottle at $1.25	$0.89
Limes, 2 (juice for the batch)	$0.80
Salt and ice	$0.12
Batch total / per glass	$4.89 / $0.61

Homemade tamarind soda at 61 cents a glass against a $1.25 bottled tamarind soda and a $1.85 craft canned soda, all at my local prices. Source: author's local prices, Knoxville, TN, October 2026.

Two honest warnings

First, paste is not pods. This recipe uses seedless tamarind paste from a jar, which is consistent jar to jar. If you start from pods, you will soak, squeeze, and strain, and your syrup will vary; that is a fine afternoon project but a different recipe. Second, do not sweeten the whole batch of sparkling water in a pitcher for a party and expect it to hold. Carbonation is the ingredient that leaves first. Mix glasses to order, or hold the syrup and still water separately and add the sparkling water at the table, the way the Thai soda is served. Do that, and this is the cheapest interesting drink in my rotation: sour, cold, and awake-tasting, at roughly half the bottled price.