"This recipe for Jewish buckwheat-mushroom (kasha) knishes is made with a flaky sour cream pastry. Don't overwork the dough or it will taste like crackers! I like to use dried Polish borowiki mushrooms but Italian porcini will do. The fresh mushrooms can be button or baby bellas. Serve with a dollop of sour cream and chopped dill, if desired. Knishes can be eaten as a snack, appetizer, main course or side dish. Read more about knishes here. For those who keep kosher, to make this parve, use vegetable broth to soak the dried mushrooms in. Here's a larger photo of Jewish Buckwheat-Mushroom (Kasha) Knishes...."