Begun Doi Sorse Posto Bata Jhol, also known as Eggplant in Mustard, is a traditional Bengali dish made with eggplant, yogurt, mustard paste, and poppy seed paste. This dish has a unique combination of flavors, with the tanginess of yogurt, the spiciness of mustard, and the nuttiness of poppy seeds. The eggplant is cooked in a thick gravy made with these ingredients, resulting in a rich and creamy dish that pairs well with rice or roti.