This recipe for brioche cinnamon rolls makes the softest cinnamon rolls. They’re super fluffy, filled with cinnamon sugar and iced with a vanilla cream cheese glaze. A brioche dough makes the best homemade cinnamon rolls. They are so soft and fluffy with a great rich flavor. Brioche dough itself isn’t overly sweet, so it pairs very well with the cinnamon sugar filling and the sticky sweet cream cheese glaze.