Can I use black poppy seeds instead of white?
No — this substitution will produce a noticeably different dish. White and black poppy seeds come from the same plant (Papaver somniferum) but taste distinct: black poppy seeds (common in Central and Eastern European baking) have a more pronounced, slightly richer bitterness. White posto has a milder, creamier, nuttier flavor that is essential to aloo posto's character. The dish is named after the ingredient for a reason.



