A knish is a traditional Eastern European pastry filled with various ingredients, commonly potatoes, meat, or cheese. Originating from Jewish cuisine, knishes are often baked or fried and can be served as a snack or a meal. They are popular in many Jewish delis and are enjoyed by people of all backgrounds. The dough used for knishes is typically made from flour, water, and eggs, creating a soft and flaky texture. Knishes can be found in different shapes and sizes, from small bite-sized versions to larger, more substantial ones. They are often enjoyed with condiments like mustard or sour cream.