Lime Pickle (Nimbu ka Achaar)

Origin: India, pan-South Asian. Whole limes or lime pieces cured in salt and their own juice, then finished with oil and a spice mix (often including fenugreek, mustard seed, and chili), left to mature for weeks.

Flavor Profile: Intensely sour and salty, with a pungent, slightly bitter edge from fenugreek and mustard oil.

Culinary Uses: Condiment eaten in small amounts alongside dal, rice, and roti as a flavor accent rather than a main component.

Regional Variations: Gujarati and Punjabi lime pickles differ significantly in spicing and oil used (mustard oil versus other oils); sweet lime pickle versions add jaggery for a sweet-sour profile.

Storage: Properly cured and oil-sealed, keeps for a year or more at room temperature — one of the most shelf-stable South Asian condiments.