Combine all of the ingredients in your slow cooker and cook on low for three to four hours. Taste at the end and adjust the sugar, salt, or pepper as needed.
Use immediately or store in the refrigerator for 4 to 5 days.
Video
Notes
The diced tomatoes make for a nice chunky sauce. If your family doesn't dig on chunks, replace the diced tomatoes with a second can of crushed tomatoes.