Add tomato puree and stir-fry for a while, then pour in red wine, scrape the fond layer on the bottom of the pan while frying. Pour in canned tomatoes and add half a can of water. Mix well, add chopped fresh basil leaves and bay leaves, season with appropriate amount of salt and black pepper, and mix well. Cover the pot and simmer slowly for at least 2 hours until the sauce is thick, stirring occasionally during the period, depending on the situation, you may need to add water. Remove bay leaves before use.