Párek v rohlíku is a Czech dish that consists of small parek sausages served inside bread rolls. In many ways, this Czech classic resembles a hot dog, but the bread rolls are usually hollowed and the sausage is completely enclosed within the bun.
Ketchup or mustard are the only condiments that are traditionally paired with párek v rohlíku. This quick and easy snack is the most common Czech street food, sold at numerous mobile food carts, and it can even be bought at many gas stations.