Black Winter Truffle (Tuber Melanasporum) Available June-August Black winter truffles are an amazing experience. The winter truffle is strong and highly pungent in aroma with a rich deep earthy flavour. Winter truffles are what food lovers dream about and food experts write about. Used well, they are a true culinary experience. At the Mushroom Shop we stock French winter truffles (regarded as the finest in the world). Winter truffles have anb black skin and black marbled flesh.