Spaghetti Cacio e Pepe is one of the most ancient dishes of Italian cuisine. For centuries, cacio e pepe has been the perfect meal of the Roman shepherds. The dried pasta, aged pecorino, and black peppers are easy-to-carry ingredients that are hard to spoil. Despite many recipes online, this traditional way of making cacio e pepe does not call for any oil, cream or butter. The perfect balance of starchy pasta water and grated pecorino combined in the right way are enough to create the creamy cacio e pepe sauce.