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West Bengal / East India · Indian

Aloo Posto (Bengali Potatoes in Poppy Seed Paste)

A beloved Bengali vegetarian dish: potatoes cooked in a creamy, nutty paste of ground white poppy seeds, gently spiced and finished with mustard oil and green chili. Humble, soothing, and quietly addictive.

By Table & Traditions Editors

Published June 22, 2026

Cubed potatoes coated in a creamy pale poppy-seed paste in a white bowl, flecked with black nigella seeds and topped with whole green chilies, beside steamed rice.

Posto — white poppy seed paste — is one of Bengal's most cherished ingredients, and aloo posto is its most everyday expression. Poppy seeds became central to Bengali cooking in part through colonial-era opium cultivation in the region; today posto is pure comfort food, eaten with rice and dal at home.

Yield
Serves 4
Prep
15 min (plus poppy seed soak)
Cook
20 min
Total
35 min
Difficulty
Easy

Aloo posto is one of those dishes that explains a whole cuisine in a few ingredients: potatoes cooked in a creamy paste of ground white poppy seeds, tempered with nigella and mustard oil, sharpened with green chili. It is pure Bengali comfort — unassuming, soothing, and quietly impossible to stop eating, especially over hot rice.

Posto: Bengal’s prized paste

Posto, white poppy seed, is among the most loved ingredients in Bengali kitchens. Its prominence has a complicated history — tied in part to colonial-era opium cultivation in the region — but today it means home cooking at its most comforting. Ground to a smooth, nutty paste, it becomes a creamy coating with no cream at all.

The two techniques that matter

First, grind the poppy seeds smooth — soak them in warm water so they break down creamy rather than gritty. Second, use mustard oil with confidence: temper nigella seeds in it, and finish the dish with a raw drizzle, the sharp aroma that marks so much Bengali food.

Gentle and slow

This isn’t a dish to rush or brown hard. Sauté the potatoes lightly, then let them cook covered and low in the posto paste until tender and coated in a thick, pale paste. A pinch of sugar rounds it, fresh green chilies finish it.

Pair it with macher jhol and rice for a Bengali meal, or browse the full recipe collection.

Ingredients

Serves
4

For the posto paste

  • 4 tbsp white poppy seeds (posto) Soak in warm water 20–30 minutes, then grind to a smooth paste — the heart of the dish.
  • 2 green chilies Ground with the poppy seeds; adjust for heat.

For the dish

  • 4 medium potatoes, cut into small cubes or batons
  • 2–3 tbsp mustard oil Mustard oil gives the authentic Bengali pungency; finish with a raw drizzle too.
  • 1/4 tsp nigella seeds (kalonji)
  • 1/4 tsp turmeric
  • 2 whole green chilies, slit
  • salt and a pinch of sugar

Method

Tap a step’s number to check it off as you go.

  1. Soak the poppy seeds in warm water, then grind with the green chilies and a little water to a smooth, thick paste.

    Why: A fine paste is essential — gritty poppy seeds give a rough texture. Soaking softens them so they grind creamy.

  2. Heat mustard oil to smoking, cool slightly, then temper the nigella seeds and slit green chilies briefly.

    Why: Nigella in hot mustard oil is the aromatic base of this dish; smoking the oil first removes its harshness.

  3. Add the potatoes and turmeric and sauté 4–5 minutes so they take on a little colour.

    Why: Lightly frying the potatoes deepens their flavour before they steam soft in the paste.

  4. Stir in the poppy seed paste, salt, and a pinch of sugar, then add a little water, cover, and cook on low until the potatoes are tender and coated in a thick paste.

    Why: Cooking gently and covered lets the potatoes cook through while the posto thickens into a creamy coating rather than a watery sauce.

  5. Finish with a raw drizzle of mustard oil and a couple of fresh slit green chilies.

    Why: A final hit of raw mustard oil is a Bengali signature that lifts the whole dish with its sharp aroma.

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Variations

  • Jhinge posto

    Use ridge gourd (jhinge) in place of, or with, the potatoes for another classic posto dish.

  • Posto bora

    Turn the poppy seed paste into fritters — mix with chili and onion and shallow-fry into small patties.

  • Onion posto

    Add sliced onion fried until soft for a slightly sweeter, heartier version.

Serving & Storage

Eat with hot steamed rice and a dollop of ghee — that's the classic. It's typically a starter course in a Bengali meal, before fish or dal.

Pairs with: Steamed rice, Dal, Begun bhaja (fried eggplant).

Storage: Keeps 2 days refrigerated; the paste may thicken, so loosen with a splash of water when reheating.

Nutrition

Per serving (about 3/4 cup)

Calories
260
Protein
6 g
Carbs
32 g
Fat
12 g
Fiber
5 g
Sugar
2 g
Sodium
390 mg

Notable micronutrients: Manganese, Magnesium, Vitamin C

Estimated using standard ingredient data. Values vary with brands and substitutions.

Frequently Asked Questions

What are poppy seeds (posto) and where do I find them?

Posto is white poppy seed, milder and nuttier than the dark poppy seeds used in European baking. Find it at Indian grocers. Note that poppy seeds are restricted or banned in some countries (like Singapore and the UAE), so check local rules.

How do I grind poppy seeds smoothly?

Soak them in warm water for 20–30 minutes first, then grind with a little water and the green chilies. A small spice grinder or a wet grinder works better than a large blender for such a small quantity.

Is aloo posto spicy?

It's gentle and soothing by nature, with heat coming only from green chilies you can adjust. The poppy seed paste itself is mild, nutty, and creamy.

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