Bring a large pot of salted water to boil. Once the water comes to a boil, cook the pasta according to package directions until al dente. Reserve ¼ cup of pasta water, then drain pasta.
1 lb Large rigatoni
Meanwhile, prepare the sauce: Add the olive oil to a deep, large skillet and heat over medium-low. Add the guanciale in an even layer and cook, stirring occasionally, until the fat renders and the strips start to crisp, about 5 minutes. Using a slotted spoon, remove guanciale to a small dish and set aside. Transfer the pan drippings to a small bowl, leaving about 1 tablespoon in the skillet.
2 tsp Olive oil, 4 oz Guanciale, cut into 2-inch matchsticks
Increase heat to medium-high and stir the onion into the pan drippings, allowing it to soften, about 1 minute. Add the sausage and 1 teaspoon salt and break up the meat into small pieces. Cook, stirring occasionally, until the sausage has browned, about 5 minutes.
1 ea Onion, minced, 1 lb Italian sausage, casings removed
Stir in the tomato paste, then the cherry tomatoes. Decrease heat to medium and stir in the wine. Cover the sauce with a lid and cook for 5 minutes.
2 Tbsp Tomato paste, 12 oz Cherry tomatoes, 1 cup Red wine
Remove the lid and, using the back of a spoon, break up the tomatoes and incorporate them into the sauce. Allow the sauce to cook, uncovered, for 5 more minutes.
In a small bowl, combine the egg yolks, ¼ cup cheese, the pepper and 1 tablespoon of the reserved guanciale drippings.
4 ea Egg yokes, 1/4 cup Romano cheese, grated, 1 tsp Black pepper
Add the pasta and guanciale to the simmering sauce and stir to coat.
Stir 2 tablespoons of the pasta water into the egg mixture. Turn off the heat and stir the egg mixture into the pasta until coated and glossy, adding 2 tablespoons more pasta water if needed. Transfer the pasta to a serving dish and top with additional cheese, if desired.