Spaghetti with caramelised onion, kale & gorgonzola

Spaghetti with caramelised onion, kale & gorgonzola

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(7 ratings)

Prep: 10 mins Cook: 25 mins


Serves 4

Sweeten red onion with vinegar to contrast with salty, strong blue cheese and crunchy greens, then serve on a bed of healthy brown pasta

Nutrition and extra info

  • Healthy
  • Vegetarian

Nutrition: per serving

  • kcal526
  • fat15g
  • saturates6g
  • carbs76g
  • sugars12g
  • fibre10g
  • protein21g
  • salt0.5g
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  • 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 large red onions, halved and very thinly sliced
  • 1 tbsp chopped thyme leaf
  • large pinch chilli flakes
  • 75ml red wine vinegar
  • 1 tbsp caster sugar
  • 200ml vegetable stock
  • 400g wholewheat spaghetti
  • 200g kale, chopped



    A member of the cabbage family, kale comes in two forms: kale, which has smooth leaves, and…

  • 100g gorgonzola, crumbled



    A blue-veined cheese originating from a small town near Milan in Italy and now made by more than…


  1. Heat the oil in a large frying pan. Add the onions, thyme and some seasoning. Sauté for 10 mins until softened, then add the chilli flakes, vinegar, sugar and stock. Increase the heat and cook for another 10 mins.

  2. Meanwhile, boil a large pan of water, add some salt and cook the spaghetti following pack instructions, adding the kale for the final 4 mins of cooking. Drain and return to the pot with a little of the cooking water. Tip in the onion mixture and half the cheese, and toss together. Serve topped with the remaining cheese.

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Comments, questions and tips

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28th Nov, 2015
This was a bit weird, not the best kale pasta recipe. I substituted red wine vinegar with balsamic, but can't imagine it'd be any better with a sharper flavoured vinegar. A tablespoon of caster sugar is a bit sickly as well. Try Good Food's kale pesto recipe instead, much nicer!
25th Feb, 2013
Loved this! I used white spaghetti as that was all I had, be GENEROUS with the cheese!
12th Feb, 2013
This tasted pretty bad, not sure why - looks like the tastes of the vinegar, kale and red onions don't really play well together. I even threw away the 2nd portion as felt sick after the first. Sorry!
9th Feb, 2013
Tasty, filling and great for a midweek meal
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