Ingredients

  • 1 teaspoon olive oil
  • 3 cups coarsely chopped onion
  • 1 cup chopped carrot
  • 3 large leeks (about 2 pounds)
  • 1 cup sliced mushrooms
  • 1 cup (2-inch) parsley stems
  • 1/2 teaspoon salt
  • 5 thyme sprigs
  • 2 bay leaves
  • 8 cups water

Method

  • Heat oil in a large Dutch oven over medium-high heat. Add onion and carrot; saute 8 minutes or until onion begins to brown.
  • Remove roots, outer leaves, and top 6 inches from leeks. Rinse well and drain. Reserve remaining portion for another use. Chop leek outer leaves and tops. Add roots, chopped leek, mushrooms, and remaining ingredients to onion mixture; bring to a boil. Reduce heat; simmer until reduced to 6 cups (about 30 minutes). Strain stock through a sieve over a bowl; discard solids.