The filling for a paper-thin Breton galette is always simple. The most popular, called a complet, includes ham and egg and often a spoonful of fresh cheese. You can ask for the egg to be brouillé, briskly scrambled on the hot galette, or miroir, left untouched to bake on top. When the galette is pleated, the golden egg yolk peeps out of the crisp brown folds. One galette is a modest serving; most people eat two, sometimes even three. (If you use the smaller crêpe pan when making this recipe