The spicy tomato sauce can be refrigerated overnight. Bring it just to a simmer before adding the pasta and finishing the dish.
Guanciale (pronounced gwan-CHAH-leh), or salted, air-cured pork jowls, comes from the Italian word meaning "cheek." If using pancetta in place of the guanciale called for in this recipe, cook it in 2 tablespoons of olive oil in Step 1 and season the finished sauce with salt.
Even with the tomatoes and porky guanciale, Lazians would still pair this dish with a white wine. Try a rich version from the Frascati region.