Slow cooker: Put all ingredients in the slow cooker and stir. Cook on high for 1 hour and then on low for 6 hours or more. Remove the bay leaves before serving.
Stove: Put all ingredients in the 6-quart pot and stir. Cover and cook on medium until the sauce just begins to boil, then reduce heat to low and simmer for about 2-1/2 hours. Remove the bay leaves before serving.
6-quart slow cooker or 6-quart pot with a lid
This makes an all-purpose sauce that we use for many things. Throw in some meatballs during the last two hours of cooking, or use the sauce for lasagna.
You can find this recipe at https://andreasrecipes.com.