The hidden gem of Bangladeshi cuisine for me is not the Hilsa dishes or the Pitha rather this humble side dish of mash called Bhorta. Though in both Epar and Opar Bangla (West Bengal and Bangladesh) we speak the same language, crazy about our fish and rice and share the same sentiment when it comes to literature, cinema, art and craft but our cuisine somehwere is significantly different.
If you look into a Bengali thali you will find the rice is always placed on the left side with myriad types of fries, fritters, curries, boiled or fried mash of veggies or fish or sundried lentils, salt, chillies, wedge of lime and ghee on the right. The right bottom corner is generally left empty for the eater to mix his rice with the curries. I believe both Ghoti and Bangal cuisine follow the same norm but our plates completely miss these small mounds of bhortas the way Bangal's do it. They have a huge repertoire of bhortas or shiley bata as known in local language (ground in mortar and pestle) and can turn almost anything into a semi dry mash that brings your tastebuds alive with it's heavy handed use of chilies and mustard oil.