Complex sentence: Kringle is a pastry in Scandinavia, a Nordic variety of Pretzel, which came to these countries with the Catholic monks in the 13th century and especially in Denmark, developed further into several kinds of different sweet, salty or filled pastries.
Split into simpler sentences: Kringle is a Scandinavian pastry, a Nordic variety of pretzel, which arrived with Catholic monks in the 13th century, especially in Denmark. It developed further into several kinds of sweet, salty or filled pastries.