Kljukuša is a traditional Bosnian dish dating back to the Ottoman Empire. In its basic form, this pie-like dish is made merely with flour, salt, and water, while the filling consists of grated potatoes and eggs, and sometimes also garlic, sour cream, or milk.

The mixture is traditionally baked in round pans, and should not be too thick. When baked, kljukuša is either cut into slices or torn by hands into bite-sized pieces (ćopana or istrgana kljukuša) that are then coated in various combinations of fat, butter, sour or clotted cream, cheese, or milk.

Kljukuša is a simple and versatile dish that is often prepared in Bosnian households. It is commonly enjoyed for breakfast, as a main course or a snack as well as an accompaniment to meat dishes. In Herzegovina, the same dish is called izlivača.