A quick, Roman-style creamy rigatoni pasta that comes together in 20 minutes using simple ingredients like butter, garlic, heavy cream, and freshly grated parmesan. The secret to this dish is using starchy pasta water to create a silky, cohesive emulsion that clings to the noodles.
Do not rinse the pasta after draining, as the starch is needed for the sauce to cling. Use freshly grated parmesan rather than pre-shredded cheese for better melting. Keep heat moderate when adding cream to prevent separation. If the sauce is too thick, add more pasta water; if too thin, cook longer.
Keywords: creamy rigatoni, easy pasta recipe, 20 minute dinner, italian comfort food, garlic parmesan pasta, weeknight dinner