For an authentic flavor, ensure you use guanciale, not pancetta or bacon. Guanciale's unique curing process imparts a distinct richness. The key to a perfect Gricia is the balance of textures: al dente pasta, crispy guanciale, and a smooth, cheesy sauce. Don't be shy with the black pepper! It adds a crucial layer of flavor that complements the richness of the guanciale and Pecorino.