A Kaiser roll is a type of bread roll that originated in Austria and is known for its distinctive shape and crusty exterior. It is typically round and has a star-like pattern on top, created by scoring the dough before baking. The roll is soft and chewy on the inside, making it a popular choice for sandwiches. Kaiser rolls are often used for various types of sandwiches, including those filled with meats, cheeses, and vegetables. They are commonly found in delis and bakeries and can be enjoyed fresh or toasted. Their versatility makes them a favorite in many cuisines.