Black salt

Black salt, or काला नमक (Kala namak), is a kiln-fired rock salt made by heating raw mineral salt in sealed furnaces with charcoal and botanicals like harad fruit (Terminalia chebula). This firing creates sulfur-rich compounds that give it its signature aroma.

You’ll find it as whole crystalline chunks or already ground into powder. Most home cooks buy and use the powder.

Expect a hard-boiled-egg, sulfurous aroma with a tangy, savory mineral saltiness. It’s pungent, a bit earthy, and adds an umami-like depth to simple snacks and drinks.

Use काला नमक as a finishing sprinkle so the sulfur aroma stays bright. It’s the sour-savory touch in street-food chaats like bhel puri, pani puri, and fruit chaat.

Stir it straight into chilled drinks: jaljeera, shikanji, and spiced chaas. Whisk a pinch into yogurt for raitas such as boondi raita and cucumber raita.

Black salt originated on the Indian subcontinent and has been noted for millennia in Ayurvedic treatises under the Sanskrit name Sauvarchala lavana. Rajasthan is a premier producing state, where it’s kiln-fired using regional brine and rock minerals around lakes such as Sambhar and Didwana.

Primarily sodium chloride, with trace amounts of iron sulfides, sodium sulfate, potassium, and magnesium.