Method
- Heat mustard oil in a wide pan until just smoking — destroys raw pungency. Add nigella seeds and slit chilies; sizzle 30 seconds.
- Add diced potatoes; stir-fry 3 minutes until edges colour. Add turmeric and a pinch of salt; toss to coat.
- Cover the pan and cook over medium-low heat for 12 minutes, stirring occasionally, until potatoes are tender and slightly browned.
- Add the poppy seed paste, the remaining salt and sugar. Stir vigorously for 4 minutes — the posto coats the potatoes and starts to dry slightly. The texture should be thick and clinging, not saucy.
- Add a splash of water (about 60ml) if the mixture feels too dry. Stir 2 more minutes — the dish should be glossy with mustard oil and the posto should be just lightly bound to the potatoes.
- Garnish with cilantro. Serve with hot rice; aloo posto is meant to be eaten with rice in small portions, the poppy-seed flavour subtle but distinct.
Common questions
Can Aloo Posto be made ahead?
Aloo Posto is best made and eaten the same day, but the components can be prepped earlier — chop and measure the ingredients up to a day ahead, refrigerated separately. Final cooking takes about 25 minutes.
Is Aloo Posto spicy?
Aloo Posto as written is mild to mildly warming — the heat comes from aromatics rather than chili. Add fresh sliced chili or chili oil at the end if you'd like to push it spicier.
Is Aloo Posto vegetarian or gluten-free?
Aloo Posto is suitable for vegetarian (and vegan if dairy is omitted) diets.
How hard is Aloo Posto to make at home?
Aloo Posto is approachable for a home cook with basic stove skills — total time about 40 minutes, no special technique required.
Can Aloo Posto be scaled up or down?
This recipe is written for 4 servings. To scale, multiply each ingredient proportionally; the cooking times stay the same up to about double the volume. Beyond that, expect to cook in batches because of pan size and heat distribution.
Cultural Note
Aloo posto is the most distinctive Bengali dish ? both Bangladesh and West Bengal cook it. The white poppy seed (posto) is a Bengali staple ? used in posto bata and posto bora. White poppy seeds in Bengal are used as thickener and flavouring, not for opium content. The dish is associated with Bengali simplicity ? most everyday lunches in Bengal include some posto preparation. The Bangladeshi version often adds a touch more sugar than West Bengali (Bengali Hindu sweet tooth being a feature).
