Poppy seeds are the common seeds which are used to add taste to the dish. These are the tiny seeds we get from opium flower. Opium is used as a drug worldwide. The agriculture of this flower is very rare. These seeds are tiny oil seeds which have a nutty flavour. The seeds may be used whole, ground or to extract poppy seed oil. The white poppy seeds are called potak or postu.
Poppy seeds are small and kidney-shaped. They are less than a millimetre in length and are used as a spice or for the decoration of the dish. There are many usages of this seeds, let's have a look.

Usage:
Poppy seeds are considered very good toppings for loaves of bread and cakes. They also add creaminess to kormas. They are essentially added for thickness, texture and nutty flavour. Poppy seeds are an essential ingredient in the Bengali cuisine. The roots of the plant are used to extract oil, that is used a medicine. In European cuisine, Poppy seeds are added on pasta.

*Note:
-Poppy seeds soaked in milk and made into a fine paste are used as a moisturizer.
-It unique nutty flavor comes from volatile oils that comprise 50% of its net weight.