A time-honoured Indian confectionery hand-crafted with reduced milk, fragrant green cardamom, saffron, and toasted pistachio nuts.
Heat the mustard oil until it just smokes, then add the panch phoron and dried red chilies.
Add the tomatoes and cook until they collapse into a pulp.
Stir in the dates, raisins, sugar, and salt and simmer until thick and glossy.
Cool and serve this Bengali tomato-date chutney at room temperature with rice.