At Casalina, spaghetti carbonara arrives with guanciale as the featured cured meat, egg yolk forming the base of the sauce, black pepper, and grated pecorino cheese over long strands of pasta. Using guanciale instead of standard bacon or pancetta gives the dish a deeper pork flavor and a slightly more luxurious fat content that distinguishes it from many neighborhood versions. The sauce has a glossy, velvety texture that coats the noodles without feeling heavy, and the sharpness of pecorino and bite of pepper keep each mouthful focused. People who discuss this carbonara online often note that it leans very traditional, appealing to diners who seek a Roman‑style interpretation.