Smørrebrød is a traditional open-faced sandwich consisting of buttered rye bread that is topped with numerous ingredients and typically accompanied by vegetables, herbs, and salads. Toppings include ingredients such as cold cuts of meat, cheeses, spreads, meatballs, caviar, and condiments such as mayonnaise.

This sandwich was invented in the 19th century by Scandinavian agricultural workers who would pack a variety of open-faced sandwiches for lunch–often made with leftovers from the previous night–in order to provide them with energy during the long working hours.

Some claim that the basic idea stems from the Middle Ages and the tradition of serving food on stale bread. Today, smørrebrød is a staple of Scandinavian cuisine that is served either as an appetizer, main course, or a dessert. The sandwiches are especially popular during the holiday festivities such as Christmas and Easter.