Aam Ka Achaar

The pickle that proves the oil

Every household achaar tells you about the mustard oil it was set in. A weak oil and the pickle goes flat by the second monsoon. A refined oil and the pickle dies in three weeks — the spices have nothing to keep them. The right mustard oil holds the pickle for a year, sometimes two, and the family knows it can leave a jar in the cupboard and come back to it after Diwali.

Use raw mangoes that are still green and firm, the variety that’s sour all the way through. The salt and the oil are the preservatives. The spices are the family’s signature — there is no single correct ratio.

Method

1. Wash the mangoes, dry them thoroughly, dice them with skin on into 2 cm pieces. Salt them and leave overnight in a non-reactive bowl.
2. The next morning, drain off the liquor that the salt has drawn out. Spread the mango pieces on a clean cloth and sun-dry for two to three hours, until the surface is no longer wet.
3. Combine the cracked fennel, mustard seeds, nigella, fenugreek, chilli powder, turmeric, and asafoetida. Toss with the mango pieces until every piece is coated.
4. Heat the Bharat mustard oil in a kadhai to its first smoke, then take off the heat and let it cool completely. Kachi ghani mustard oil must be brought to smoke once before use — this softens the pungency and seasons the oil.
5. When the oil is fully cooled, pour over the spiced mangoes. Stir well. Pack into a clean glass jar with the oil covering the surface by 1 cm.
6. Set the jar in the sun for four to six weeks, stirring once a day. The achaar is ready when the mango pieces are soft, the oil is amber, and the smell makes you want to eat dal-chawal.

Notes from the kitchen

• Dryness is the single critical factor. Moisture at any stage — the mango, the spoons, the jar, the cloth — is what causes spoilage. Sun-dry until you can press a piece between your fingers and see no surface water. Use a dry spoon every time you serve.
• The pungency of cold-pressed mustard oil is the preservation system. The compound responsible is allyl isothiocyanate, a documented antimicrobial. It is what allows the pickle to keep for a year without refrigeration or any added preservative. A refined oil lacks it; that is why a refined-oil achaar dies in three weeks.
• If the oil does not cover the pickle, top it up with more mustard oil heated to smoke and cooled. Air on the surface is what spoils achaar, not time.
• Old families keep the jar wrapped in a clean cotton cloth between sun sessions. The cloth allows steam to escape without letting flies in.
• A spoonful with hot puri and tea is a complete breakfast in any kitchen between Lucknow and Lahore.