Slow cooker tomato sauce

Slow cooker tomato sauce recipe

Hello, best sauce I’ve ever made. It was so good for three reasons – firstly, it tasted amazing. Secondly, it can be used in a million different ways – pizza sauce, spaghetti bolognese, lasagne… (and this recipe actually makes enough for at least two meals). Thirdly, it only took about five minutes of effort, because the slow cooker did all the rest. Winning! (are people still saying that?)

Slow cooker tomato sauce recipe

When I dragged myself off the sofa at about midnight after an evening in front of the telly with a beer (or two), the last thing I felt like doing was getting back in the kitchen to fill up the slow cooker. However, about four minutes later it was all done, and I wondered why I’d been so reluctant. I was even more pleased the next morning when my house smelled like Italy and this rich tomato sauce was bubbling away.

Slow cooker tomato sauce recipe

The slow cooker is perfect for making tomato sauce. It’s one of those things that tastes better the longer you let it simmer. I’ll admit, I sometimes resort to using a jar of the premade stuff because I just can’t face spending my entire afternoon simmering a pan of sauce for long enough to get it thick rich – and it’s never as good if you take too many shortcuts. This version is the best of both worlds – it’s been cooked long and slow, so the tomatoes become sweet and flavourful, but it’s also barely any more effort than opening a jar. It suits me perfectly.

Slow cooker tomato sauce recipe


Slow cooker tomato sauce
Prep time
Cook time
Total time
Yield: 3 cups
  • 2 x 400g tin chopped tomatoes
  • 250g cherry tomatoes, halved
  • 2tbsp tomato purée
  • 1 onion, roughly diced
  • 5 cloves garlic, minced
  • 3tbsp fresh basil, roughly chopped
  • ½tsp mixed dried herbs
  • Salt
  • Black pepper
  1. Add all ingredients to the slow cooker, and cook on low for around 8 hours. Using an immersion blender, blend the sauce until it reaches your desired consistency (mine was fairly smooth but still had some texture). I wanted mine to thicken up a little so I then removed the lid and cooked on high for a further 1½ hours, but feel free to skip this step if your sauce is a nice consistency.

For My Whole Food Life’s original recipe, see here.


  1. Amy says

    I’ll admit it, I’m not that smart…so with that being stated upfront, how much is 400g for a silly American who doesn’t know how to convert to ounces/pounds. Second could I use crushed tomatoes instead of chopped? And my last silly tomato puree the same thing as tomato paste? The recipe sounds delicious and easy and seeing as we are in a heat wave here in Pennsylvania, I would love to make this, thanks :)

  2. Amy says

    Thanks, you are so sweet for answering me so quickly, the pictures help, now I know what size can to use. Thanks for the recipe, can’t wait to make it :)

  3. Courtney M. says

    I made this sauce the other night and it was awesome! My husband loved it! I’m an American, so I really appreciated your response to Amy’s comment. It helped me a lot too! Thank you so much for sharing (and being patient with us non-metric people!)


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