Ingredients

  • 5 tablespoons extra virgin olive oil
  • 3 leeks, both white and green parts, cut in half lengthwise and well rinsed, or 3 large onions, quartered
  • 5 carrots, cut in half
  • 3 celery stalks, cut in half
  • 3 potatoes, peeled or well washed and quartered
  • 7 garlic cloves or 4 shallots
  • 12 fresh parsley sprigs
  • 4 fresh thyme sprigs
  • 10 peppercorns
  • 1/2 cup dry white wine
  • Salt to taste

Method

  • Preheat the oven to 400F.
  • Put the olive oil in a large roasting pan and add the leeks, carrots, celery, potatoes, and garlic; toss well to coat the vegetables with the oil and put the pan in the oven.
  • Roast, shaking the pan occasionally and turning the vegetables over once or twice, until everything is nicely browned, about 45 minutes.
  • Use a slotted spoon to scoop all the vegetables into a stockpot; add the remaining ingredients except salt and 3 quarts water.
  • Set over high heat.
  • Put the roasting pan over a burner set to high and add about 1 quart water, depending on the depth of the pan.
  • Bring it to a boil and cook, scraping off all the bits of food that have stuck to the bottom.
  • Pour this mixture into the stockpot, then bring to a boil.
  • Partially cover and adjust the heat so the mixture sends up a few bubbles at a time.
  • Cook until the vegetables are very soft, 30 to 45 minutes.
  • Strain, pressing on the vegetables to extract as much juice as possible.
  • Taste and add salt if necessary.
  • Use, refrigerate for 4 to 5 days (longer if you boil it every third day, which will prevent spoiling), or freeze.