Pirog is a big Russian pie that might have a savory or sweet filling.
There is a great number of pirog recipes.
Besides a huge variety of dough – leavenous, puff, or sponge - there are also different types of pirogs, such as open (with filling on the top), closed (with filling inside) or layered.
Some kinds of pirogs are specially prepared for certain celebrations, such as matchmaking or a wake ceremony. Traditionally, in Russia, pirog was a distinguishing characteristic of a good housewife.