PIERÓG LUBELSKI = BUCKWHEAT PIE?

Has anybody ever sampled this dish, typical of the Lublin region, up into Podlasie and south into what is now called Sub-Carpathia? It is a kind of loaf filled with a mixture of buckwheat groats, potatoes and crumbled curd cheese. A pinch of ground mint leaves is added by some for flavouring. It is very nice but for those not accustomed to the hearty, nutty, dusky flavour of buckwheat -- it might take some getting used to.