Boule is a bread that originates from France, and it gets its name from its ball shape. When making this delicious bread, we recommend using whole wheat flour. Whole wheat flour contains all three parts of the wheat kernel: the endosperm, the bran, and the germ. The three of these together provide the most nutrition for the body (fiber, proteins, carbs, and trace vitamins and minerals). It also is the easiest for the body to break down into useable nutrients.