Really easy roasted red pepper sauce

Really easy roasted red pepper sauce

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(19 ratings)

Prep: 10 mins Cook: 1 hr


8 (or 2 meals for 4)

This red pepper sauce is so handy to have bagged in the freezer. The recipe makes enough for two meals – use as a base for baked gnocchi or pasta

Nutrition and extra info

  • Freezable
  • Healthy
  • Vegetarian
  • Vegan

Nutrition: per serving

  • kcal83
  • fat3g
  • saturates1g
  • carbs10g
  • sugars9g
  • fibre3g
  • protein2g
  • salt0g


  • 4 red peppers (or a mix of red, orange and yellow), cut into chunks
  • 2 onions, roughly chopped



    Onions are endlessly versatile and an essential ingredient in countless recipes. Native to Asia…

  • 2 garlic cloves (skin left on)
  • 2 tbsp olive oil
    olive oil

    Olive oil

    ol-iv oyl

    Probably the most widely-used oil in cooking, olive oil is pressed from fresh olives. It's…

  • 2 x 400g cans peeled plum tomatoes
  • 2 tsp red wine vinegar
  • 1 tsp light soft brown sugar


  1. Heat oven to 190C/170C fan/gas 5. Toss the peppers and onions with the garlic and olive oil, and spread out in a roasting tin. Roast for 40 mins, then add the tomatoes, red wine vinegar and sugar, and roast for another 20 mins. Tip into a food processor and blend until smooth. Season to taste.

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Comments, questions and tips

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Aitcheff's picture
7th Sep, 2019
Honestly? So disappointed. I used fresh cherry tomatoes ( instead of tinned) as we had a glut of them. The taste was ok, but the seeds, oh dear, the seeds, I could not bear. I tried sieving but this would have taken forever and wasn't really successful. My other half thought it was very tasty and didn't mind the seeds, so its gone in the freezer to use for pasta etc.
16th Jul, 2018
Fantastic recipe! Modified with added eggplant, tiny bit of cinnamon, chilli flakes, fennel seeds, cilantro seeds and soy sauce. Keeper!
Frantic Flapjack
3rd May, 2018
Really good sauce and very easy to make. I used half of it to make the gnocchi with roasted red pepper sauce recipe on this site. I'm going to use the other half as a pasta sauce.
6th Nov, 2017
Unbelievably easy to make and absolutely delicious.... My two teenage sons raved over it, definitely one that will be made again and again.
5th Jun, 2017
very nice sauce! the texture is like a coarse, rustic style passata and it works well with both gnocchi and pasta. lovely taste and I suspect it will work equally well in a pizza. very easy to make as well! will definitely be making again!
31st Mar, 2017
This is very very yummy and I enjoyed the fact that when you whizz it all up it's like a very posh and tasty passata.
Ayesha Iqbal
1st Jul, 2020
What’s a substitute for red wine vinegar? (Non alcoholic) Or can we take it out completely?
lulu_grimes's picture
3rd Jul, 2020
Hi Ayesha, You can use lemon juice instead. You could also leave it out but it does add a sweet-sour flavour. Lulu
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