Poppy seed — posto — is the ingredient that separates Bengali cooking from every other regional tradition. Ground into a white paste and fried with cubed potatoes, it produces a dish of extraordinary richness and subtle bitterness.
Aloo posto is what Bengali households eat when there is nothing special for dinner. It is quietly one of the greatest potato dishes on the subcontinent.
Zone: River Delta
SOURCE: Printed Bengali cookbook, Kolkata, 1987. Translated from Bengali.
LOCAL NAME: আলু পোস্ত
INGREDIENTS
- 600 grams floury potatoes (peeled and cut into 2cm cubes)
- 4 tablespoons white poppy seeds (khus khus, soaked in cold water for 30 minutes)
- 3 green chillies
- 3 tablespoons mustard oil
- 0.5 teaspoons nigella seeds (kalonji)
- 0.5 teaspoons turmeric
- 1 teaspoons salt
- 4 tablespoons water
METHOD
- Make the posto paste: Drain the soaked white poppy seeds. Blend with 2 of the green chillies and 2 tbsp of the water to a smooth, thick white paste. It should have no graininess — keep blending. This is the posto; its quality determines the dish.
- Heat the mustard oil in a wide pan over medium heat until it shimmers. Add the nigella seeds and let them pop for 20 seconds. Add the potato cubes, turmeric, and salt. Fry for 8–10 minutes, turning occasionally, until the potatoes are golden at the edges and just cooked through.
- Add the posto: Reduce the heat to low. Add the posto paste and the remaining green chilli, slit lengthways. Stir to coat every piece of potato. Add the remaining 2 tbsp of water and stir again. Cook for 3–4 minutes until the paste dries slightly and clings to the potato. It should look matte and pale, not wet.
- Serve: Serve immediately alongside steamed white rice. Aloo posto is not a standalone dish — it is part of a Bengali rice plate, eaten with dal and a vegetable alongside. A drizzle of raw mustard oil over the finished dish is traditional and correct.
NOTES
UK: White poppy seeds (khus khus) from South Asian grocers — not the blue-grey poppy seeds sold in supermarket baking sections, which are a different variety. Pre-ground posto paste occasionally available frozen from Bengali grocers. Mustard oil essential; do not substitute.
US: White poppy seeds from Patel Brothers or Indian grocery stores. Note: white poppy seeds are legally sold across all US states for culinary use. Mustard oil from Patel Brothers or Amazon.
Zone: River Delta
SOURCE: Printed Bengali cookbook, Kolkata, 1987. Translated from Bengali.
LOCAL NAME: আলু পোস্ত
INGREDIENTS
- 600 grams floury potatoes (peeled and cut into 2cm cubes)
- 4 tablespoons white poppy seeds (khus khus, soaked in cold water for 30 minutes)
- 3 green chillies
- 3 tablespoons mustard oil
- 0.5 teaspoons nigella seeds (kalonji)
- 0.5 teaspoons turmeric
- 1 teaspoons salt
- 4 tablespoons water
METHOD
- Make the posto paste: Drain the soaked white poppy seeds. Blend with 2 of the green chillies and 2 tbsp of the water to a smooth, thick white paste. It should have no graininess — keep blending. This is the posto; its quality determines the dish.
- Heat the mustard oil in a wide pan over medium heat until it shimmers. Add the nigella seeds and let them pop for 20 seconds. Add the potato cubes, turmeric, and salt. Fry for 8–10 minutes, turning occasionally, until the potatoes are golden at the edges and just cooked through.
- Add the posto: Reduce the heat to low. Add the posto paste and the remaining green chilli, slit lengthways. Stir to coat every piece of potato. Add the remaining 2 tbsp of water and stir again. Cook for 3–4 minutes until the paste dries slightly and clings to the potato. It should look matte and pale, not wet.
- Serve: Serve immediately alongside steamed white rice. Aloo posto is not a standalone dish — it is part of a Bengali rice plate, eaten with dal and a vegetable alongside. A drizzle of raw mustard oil over the finished dish is traditional and correct.
NOTES
UK: White poppy seeds (khus khus) from South Asian grocers — not the blue-grey poppy seeds sold in supermarket baking sections, which are a different variety. Pre-ground posto paste occasionally available frozen from Bengali grocers. Mustard oil essential; do not substitute.
US: White poppy seeds from Patel Brothers or Indian grocery stores. Note: white poppy seeds are legally sold across all US states for culinary use. Mustard oil from Patel Brothers or Amazon.