Pain de Beaucaire is one of those breads that is like true magic to me. It really seems impossible that a stiff dough could yield a bread whose crumb is as light and open as this centuries-old bread from Beaucaire, in the south of France.
The secret lies in the bread’s unique shaping method. The dough is formed into two layers, with a layer of wet flour slurry sandwiched between them. When the sandwich is stood on its side to bake, the loaf opens along the “filling” to create its beautiful characteristic fissure, similar to a fendu loaf, and the steam created by the slurry helps lighten the crumb.