Rosa sauce and vodka sauce are both tomato-based sauces that are commonly used in Italian cuisine. However, they differ in their ingredients and flavor profiles. Rosa sauce is a creamy tomato sauce that is made with tomato puree, cream, and parmesan cheese. It is usually seasoned with garlic, basil, and red pepper flakes, and has a smooth, velvety texture. Rosa sauce is often used with pasta dishes, and is particularly good with lighter pasta shapes like fettuccine or penne. Vodka sauce, on the other hand, is made with a combination of tomato puree, heavy cream, and vodka. It is seasoned with onion, garlic, and red pepper flakes, and has a slightly tangy flavor that is balanced by the sweetness of the cream and the heat of the vodka. Vodka sauce is often used with heartier pasta shapes, such as rigatoni or ziti, and is a popular choice for dishes like pasta carbonara or spaghetti alla vodka. In summary, rosa sauce is a creamy tomato sauce with a smooth texture and a mild flavor, while vodka sauce is a tangy tomato sauce with a slight heat and a slightly sweet flavor due to the addition of vodka and heavy cream.