Slow Cooker Homemade Tomato Sauce is so easy to make! Featuring fresh tomatoes, red wine, yellow onions, and a beautiful bouquet of fresh herbs! It’s an aromatic, flavorful, robust sauce that makes everything it touches so delicious.
Add all the ingredients to your slow cooker then stir to combine.
Use an immersion blender to roughly blend until there aren’t too many large pieces. Or add all the ingredients to your blender and pulse a couple of times until it reaches a chunky consistency then pour it back into the slow cooker.
Cover with the lid then cook on low for at least 8 hours or overnight or on high for 4 hours or up to 8 hours.
Add more salt to taste then use your blender or immersion blender to blend until it reaches your preferred consistency.
Serve over cooked spaghetti or store in an airtight container in the fridge for up to 4 days.
Notes
NOTE: I tend to use Roma tomatoes for this recipe, but you can use what you have on hand.