Soup au Pistou

I'd encourage you to substitute vegetables based on whatever is in season.   Gluten-free readers can simply leave out the pasta, or use a GF pasta.

Soup au Pistou

Print Grocery List Print Recipe
Serves: 6 Total Time: 1 hour and 25 minutes


  • 1/2 pound / 16 oz dried flageolet or great northern beans, soaked for at least 4 hours, preferably overnight, then drained
  • 1/8 cup olive oil
  • 2 medium onions, chopped
  • 1 medium leeks, trimmed and chopped
  • 2 stalks celery, chopped
  • 6 cups water
  • 1 16-ounce can, whole tomatoes, well drained, chopped
  • 2 medium yellow potatoes, chopped
  • 1 bouillon cube, optional
  • 1/8 pound / 2 oz. stellette (tiny star) pasta, or other small pasta
  • 1 zucchini, chopped
  • 1/4 cup chard stems, finely chopped
  • 1 teaspoon salt, or to taste
  • For the Pistou:
  • 1/2 tablespoon crushed garlic
  • 1/2 teaspoon fine grain sea salt
  • 2 cups basil leaves, torn into small pieces
  • 1 tomato (from above), well chopped
  • 1/8 cup extra-virgin olive oil
  • 1/2 cup grated aged Gruyere cheese



In your largest soup pot heat the oil, then add the onions, leeks, and celery. Saute for about 5 minutes, then stir in the soaked beans and 6 cups water. Bring to a boil, dial back to a simmer, then cook for about 15 minutes.


Reserve one of the tomatoes for the pistou, then stir the remaining tomatoes into the pot, then the potatoes. Cook for another 15-20 minutes, or until the beans seem like they are nearly cooked.


Add a bouillon cube if you like, then the pasta, and simmer for 5 minutes. Add the zucchini and the chard stems and cook for another 3 minutes. Stir in salt - perhaps less if you used a salty bouillon - essentially, you want to salt to taste. At this point the pasta should be cooked through, as well as all the beans and vegetables.


For the soup to taste good, you really need to get the right amount of salt in it - just be mindful of this, and adjust if needed.


While the soup is cooking, you can make the pistou. I use a mortar and pestle, but you can use a food processor if you like. Pound the garlic with the salt into a paste. Add the basil a handful at a time and pound and grind until nearly smooth. Add the tomatoes, then gradually stir in the olive oil a bit at a time. Stir in the cheese.


Ladle soup into bowls and top with a generous dollop of pistou.


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