Bakers make a thick dough with flour, butter, sugar, yeast, milk, and eggs. They cook this dough in a waffle iron until it is crispy. When the waffle is still warm, they cut it into a round shape and then slice it horizontally into two thin layers. They then spread a mix of syrup, brown sugar, butter, and cinnamon between these layers. As this mix cools, it turns into caramel and sticks the layers together.