Koláč (plural koláče), Czechia's national pastry treasure is a circle of yeast dough filled with a variety of irresistible filings – apricot, plum jam, poppyseed, and farmer's cheese – and baked to golden perfection. Modern pastry chefs have elevated what started as a humble wedding staple to wheel-shaped (the name in Czech derives from “kola” meaning “round”) works of edible art, something you can really sink your teeth into.