Matzo must be ground from one of the five grains specified in Jewish law for Passover matzo: wheat, barley, spelt, rye or oat. Per Ashkenazic tradition, matzo made with wine, fruit juice, onion, garlic, etc., is not acceptable for use at any time during the Passover festival except by the elderly or unwell. Matzo dough is quickly mixed and rolled out without an autolyse step as used for leavened breads. Most forms are pricked with a fork or a similar tool to keep the finished product from puffing up, and the resulting flat piece of dough is cooked at high temperature
Jewish cuisine that is either baked, grilled, or deep fried. A popular dish among Ashkenazim, as amongst most Eastern-Europeans, is pierogi (which are related to but distinct from kreplach), often filled with minced beef. Kishka is a popular Ashkenazi dish traditionally made from beef intestine (casing) stuffed with flour or matzo meal, schmaltz and spices. The rendered fat of geese and chickens, known as schmaltz, is kept in readiness for cooking use when needed. Geribenes or "scraps," also called "griven," the cracklings left from the rendering process were one of the favorite foods in Eastern Europe. "Geribenes" is eaten spread on bread.