The Bosna is a popular fast food dish originating from Austria, specifically within the region of Salzburg. It consists of a spiced bratwurst sausage served in a white bread roll, often similar to a baguette. The dish is typically garnished with onions, mustard, and a unique blend of curry powder, which gives it a distinct flavor profile. Variations may include additional spices or condiments like ketchup or hot sauce, depending on local preferences.

The invention of the Bosna reportedly dates back to the late 1940s or early 1950s. Credit for its creation is generally attributed to a man named Zanko Todoroff, who was an immigrant from Bulgaria. Todoroff aimed to introduce a quick and flavorful street food option that was different from the traditional Austrian sausages at the time. Initially, the dish was referred to as "Nadanitza," a reference to its Balkan influences, before eventually being renamed "Bosna" to better market the product in Austria.

While the Bosna might appear similar to the American hot dog, its taste remains distinctly different due to the use of curry and onion toppings. The dish gained popularity rapidly within Austria and subsequently spread to neighboring regions. In Salzburg, the Bosna is particularly celebrated and is considered a local culinary specialty. It is commonly found at food stands and markets, as well as at events such as fairs and festivals.

Despite its specific regional origins, the Bosna has contributed to the broader street food culture within Austria and neighboring countries. Its appeal lies in its simplicity, distinct taste, and its reflection of the multicultural influences that have shaped modern European cuisine.