Kolache is a sweet pastry that originates from central Europe. Due to its popularity, it has spread across the world and has various synonyms. In Czech, it is known as "koláč," while in Hungary, it is known as "kalács." In Poland, it is known as "kiełbaski" and in Ukraine, they are called "kolach." In some parts of the United States, it is known as "klobasnek." Kolache can be filled with various ingredients, and each filling has its name. For example, a filling made with poppy seeds is known as "makovník" while a cheese filling is called "tvarohovník." Whatever name is used, kolache is a delicious pastry enjoyed by many.