Wikipedia
Smørrebrød
Smørrebrød (; originally smør og brød, "butter and bread") usually consists of a piece of buttered rye bread ( rugbrød), a dense, dark brown bread. Pålæg (literally "on-lay"), the topping, that among others can refer to commercial or homemade cold cuts, pieces of meat or fish, cheese or spreads. This daily practice is the base of the famous Danish open sandwich, smørrebrød: a slice or two of pålæg is placed on the buttered bread, and then pyntet (decorated) with the right accompaniments, to create a tasty and visually appealing food item.