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Spiced Tomato & Couscous Soup

Couscous and harissa are a great pairing in this good-value soup

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Why it works: Olive and tomato match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and 14,164 recipes mention both. Both carry 3-hexenal, which smells apple, fruity. The science ↓

The recipe

Serves 4
Prep10 min
Cook40 min

Ingredients

Contains: wheat (auto-detected from the ingredients and method; we can miss things, so check labels)

Directions

Method written by CompKitchen from the ingredient list. Not the original author's method, not kitchen-tested.

  1. Heat a splash of olive oil in a large pot over medium heat. Add the chopped onion, diced carrots and diced celery and cook, stirring, for 8 minutes until softened.

  2. Stir in the harissa paste, ground cumin and tomato purée and cook for 2 minutes, stirring constantly, until fragrant.

  3. Add the chopped tomatoes and vegetable stock, then bring to a simmer.

  4. Reduce the heat to low, cover partly and simmer for 15 minutes until the carrots are tender.

  5. Drain and rinse the chickpeas, then add them to the pot along with the couscous. Simmer uncovered for 5 minutes until the couscous is tender.

  6. Taste and adjust the seasoning. Stir in most of the chopped parsley, reserving a little for garnish.

  7. Ladle the soup into bowls and scatter over the remaining parsley to serve.

By bbcgoodfood. Recipe from Open Recipes.

Explore the science

The flavor team

The pairs that carry this dish. Each one is judged two ways: how much aroma chemistry they share, and how many recipes mention both.

  1. Olive + tomatotop 1% of all pairs
    Aroma overlapstrong
    Mentioned together14,164 recipes

    Shared aroma: 3-hexenal (apple, fruity).

  2. Carrot + celerytop 1% of all pairs
    Aroma overlapstrong
    Mentioned together10,172 recipes

    Shared aroma: myristicin (spice, warm).

  3. Cumin + chickpeatop 1% of all pairs
    Aroma overlapstrong
    Mentioned together473 recipes

    Shared aroma: linalool (floral, citrus).

  4. Carrot + cumintop 2% of all pairs
    Aroma overlapstrong
    Mentioned together776 recipes

    Shared aroma: methyl cinnamate (strawberry).

  5. Cumin + tomatotop 2% of all pairs
    Aroma overlapmoderate
    Mentioned together3,272 recipes

    Shared aroma: beta-phellandrene (minty, terpene).

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

Flavor stand-ins for the harissa

How well each one fits the dish's main ingredients (olive, onion, carrot, celery, cumin, tomato, chickpea):

  1. Corianderbetter flavor fit
  2. Oreganobetter flavor fit
  3. Parsleybetter flavor fit
  4. Harissathe original

Fit is the average pairing score against olive, onion, carrot, celery, cumin, tomato, chickpea. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).