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Home Collections Winter Warmers

Slow Cooker Marinara Sauce

By:Nagi
Published:12 Aug '14Updated:13 Dec '18
64 Comments
Recipe v

Slow cooking this marinara sauce caramelises the sugar in the tomatoes and creates the most incredible depth of flavour that you won’t ever get in a store bought bottled pasta sauce. It takes mere minutes to throw everything into the slow cooker, then just set and forget.

Slow Cooker Marinara Sauce served with pasta

When it comes to store bought sauces, there’s a line I never cross. Store bought tomato sauce and ketchup is acceptable. Store bought chilli sauce and complicated ones like Worcestershire sauce are also acceptable to buy rather than make.

But pasta sauce is a no-go. No way, no day. The thing is, there are so many pastas you can make in 15 minutes from scratch that I just can’t comprehend why anyone would buy a bottle of pasta sauce. For example, here are 8 Simple Classic Italian Pastas that I shared last month, all of which are on the table in 15 minutes.

Making a pasta with a proper authentic marinara sauce takes longer than 15 minutes because you need to let it simmer away so the flavours can develop. Making it on the stove, I cook mine for at least 30 minutes, preferably for 1 hour. Time I don’t have mid week.

That’s why having a slow cooker version of marinara sauce is so handy. It takes 5 minutes to dump the ingredients into the slow cooker, then set and forget. The slow cooking caramelises the sugar in the tomatoes and creates a depth of flavour that store bought will never be able to compare to. It will keep for a week in the fridge or up to 3 months in the freezer.

Slow Cooker Marinara Sauce prepared in a slow cooked and bottled

I like my marinara sauce smooth because I like how evenly it coats the pasta. I also find it is easier to use as a sauce to pour over cannelloni and lasagne. So once the slow cooker is done, I use a handheld stick to whizz it until smooth which literally takes seconds. One tip: don’t forget to remove the bay leaves!! Because they’re dried, they are quite tough and stringy and when you whizz it, you end up with stringy bits throughout your sauce. I’ve made this mistake a few times and it’s irritating!

This Slow Cooker Marinara Sauce recipe makes about 6 cups. I use 2 cups of sauce per 500g/1lb of dried pasta which serves 4 man size portions or 6 lady size servings. This amount of sauce coats the pasta as shown in the photo at the top.

This is also perfect for using for lasagne, cannelloni, Baked Spinach and Ricotta Rotolo (like cannelloni – but better because there’s brown crunchy bits!) and parmigiana (to name a few things!). Hope you enjoy! – Nagi x

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Slow Cooker Marinara Sauce

Author: Nagi | RecipeTin Eats
Prep: 5 mins
Cook: 6 hrs
Total: 6 hrs 5 mins
Pasta, Sauce
Italian
4.78 from 9 votes
Servings6 cups
Tap or hover to scale
Print
  • 59
A good marinara sauce is an essential for everyone. I love this one because you just dump the ingredients into a slow cooker then leave it to work it's magic. The slow cooking caramelises the sugar in the tomato and creates a depth of flavour you will never get from store bought pasta sauce.

Ingredients

  • 2 cans (800g/28oz each can) crushed tomatoes (see notes)
  • 1 can (170 g / 6 oz) tomato paste
  • 1 medium brown onion (or white or yellow), diced
  • 2 garlic cloves , minced
  • 2 bay leaves (dried or fresh)
  • 1 tbsp brown sugar (or honey)
  • 1 tbsp dried basil
  • 2 tsp dried oregano
  • 2 tbsp olive oil
  • 1 tbsp balsamic vinegar
  • 1 1/2 tsp salt
  • 1/2 tsp black pepper

Instructions

  • Combine all ingredients in a slow cooker. Set for 6 to 8 hours on low.
  • Optional step: Remove bay leaves, then use a handheld blender to puree until smooth (or to your liking).
  • Cool before refrigerating or freezing.

To use for pasta

  • Bring a large pot of salted water to boil and add pasta.
  • Heat olive oil in a pan, add garlic and diced onion, cook until translucent then add 2 cups of Marinara Sauce per 500g/1lb of dried pasta.
  • Bring sauce to rapid simmer, then add pasta (cooked to just before al dente).
  • Add 1/4 cup of pasta water and cook for 1 to 2 minutes until pasta is al dente and the sauce has thickened and coats the pasta.
  • Serves 4 hungry people or 6 normal servings.

Recipe Notes:

1. I like my marinara sauce smooth so I whizz it up with a hand held blender once it's finished cooking. Because I whizz it up, I can use either crushed or diced tomato. But if you don't plan to puree it, I strongly recommend using crushed rather than diced tomato because otherwise the sauce will be quite chunky - in my personal opinion, it is too chunky which means it doesn't coat the pasta as evenly and also doesn't spread as well for things like lasagna and cannelloni.
2. This sauce can be kept in the refrigerator for 1 week or freezer for 3 months.
3. 
Slow Cooker Marinara Sauce Nutrition

Nutrition Information:

Serving: 331gCalories: 127cal (6%)Carbohydrates: 25.9g (9%)Protein: 5.5g (11%)Fat: 2.5g (4%)Sodium: 610mg (27%)Potassium: 1019mg (29%)Fiber: 6.7g (28%)Sugar: 1.9g (2%)Vitamin A: 2300IU (46%)Vitamin C: 42.1mg (51%)Calcium: 110mg (11%)Iron: 4.5mg (25%)
Did you make this recipe?I love hearing how you went with my recipes! Tag me on Instagram at @RecipeTinEats.

 

Slow Cooker Marinara Sauce and poured into a bottle

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64 Comments

  1. Jenny says

    September 8, 2022 at 5:11 am

    Hi Nagi, can you make this on the stove and simmer for an hour like you said in your comments (as I sadly don’t have a slow cooker!)?

    Reply
  2. Lianne Holmes says

    November 20, 2021 at 4:44 am

    Love your recipes, I forgot to add tomato paste can it be added at the end?

    Reply
  3. snough says

    June 5, 2021 at 5:36 pm

    Could you tell me how to cook this in an Instant pot? Thanks! PS we love your recipes as they’re foolproof, delicious and there’s an excellent variety of different cuisines to try. The latest one we made was the double roasted potatoes

    Reply
  4. Marie Overgaauw says

    March 11, 2021 at 3:16 pm

    Hi, would you recommend using this sauce for chicken parmi?

    Reply
    • Nagi says

      March 12, 2021 at 10:19 am

      Hi Marie, you can, I do have a Parmigiana recipe here too: https://www.recipetineats.com/chicken-parmigiana/ N x

      Reply
  5. Robyn says

    January 16, 2021 at 2:22 am

    5 stars
    Hi Nagi
    While making this sauce again I did not have enough oregano could I have substituted the basil and oregano with Italian herb blend and if so how much
    Thank you

    Reply
  6. Robyn says

    January 9, 2021 at 4:25 am

    5 stars
    Hi Nagi I cooked this recipe and used it as a base for pizza’s huge success thank you

    Reply
  7. Melissa Daigle says

    October 3, 2020 at 9:39 pm

    Hi would I be able to use tomato puree instead of whole tomatoes?

    Reply
  8. Darrin Jones says

    September 30, 2020 at 12:56 am

    Hi there!

    I made this recently and it was truly divine. Once it was finished cooking, I served it with gnocchi and turkey meatballs. I loved how the sauce clung to the gnocchi and meatballs. I did notice there was a very subtle bitter taste, would this have been from the tomato paste? Should I add additional brown sugar or balsamic to counter-balance this?

    Best,
    Darrin

    Reply
    • Nagi says

      September 30, 2020 at 9:45 am

      Hi Darrin, sometimes tomatoes can be a little sour – I’d sell my soul for good tinned tomatoes here!! To offset this, just add 1 tsp or white or brown sugar to the mix – it will take that bitter flavour away 🙂 N x

      Reply
  9. Karen Carr says

    September 22, 2020 at 8:31 am

    Hi Nagi, I have lots of home grown tomatoes at the moment, can I use fresh tomatoes?

    Reply
    • Nagi says

      September 22, 2020 at 1:31 pm

      Hi Karen, you sure can – you’ll need to blanch and remove the skins first and then crush them. You will need equivalent to the 2 cans (which is 1.6kg) – N x

      Reply
      • Karen Carr says

        September 22, 2020 at 1:40 pm

        Thanks Nagi, I’ll give it a go
        PS…..love your recipes

        Reply
  10. Mark Forde says

    June 5, 2020 at 10:34 pm

    I’ve only ever cooked your Asian dishes. Actually doing a Singapore noodles later for tonight and Sunday. But i look to you now for new recipes. Raging I missed this making last bach of sauce. Putting on now. Can I double recipe then remove half when done and take lid off foe another couple of hours to make a pizza sauce which is tomorrow’s weekend dinner? Thanks M

    Reply
    • Nagi says

      June 6, 2020 at 3:54 pm

      Yes definitely Mark! N x

      Reply
      • Mark says

        July 2, 2020 at 9:02 pm

        Worked a treat. Thank you. I’m looking at your Thai green curry tonight 😁

        Reply
  11. Bernice Gardner says

    April 3, 2020 at 3:50 am

    5 stars
    Hi Nagi, I made this earlier today and I have just had it for dinner tonight. I used it with chicken meatballs and spaghetti it was so delicious. You are spot on with the flavour, I will never buy this sauce again. Thank you very much for the recipe and your funny sense of humour you make me laugh out loud. Yesterday you showed us a photo of Dozer looking longingly out of the window and your little feet were reflected in the window it was so funy. Thanks again. Keep safe Bernice x

    Reply
    • Nagi says

      April 3, 2020 at 11:18 am

      You’re so welcome Bernice, thank you so much, you’ve made my day! N x

      Reply
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