Pain de Campagne - Country French Bread
To make this dough in a stand mixer, use the dough hook attachments and mix on low speed for 10-15 minutes. To ensure the gluten has developed fully, cut off a walnut-sized piece of dough. Flour your fingers, and then stretch the dough: if it tears immediately, the dough needs more kneading. Fully developed dough should form a thin translucent "windowpane."