Vegetable Broth

Ingredients

• 1 tablespoon extra virgin olive oil
• 2 leeks, white and light green parts only, well washed and chopped
• 4 medium onions, chopped
• 6 large carrots, peeled and chopped
• 3 stalks celery, chopped
• 1 bunch parsley
• 2 teaspoons dried marjoram
• 1/2 teaspoon dried whole thyme
• 3 turkish bay leaves or 1/2 california bay leaf
• 1 1/2 gallons cold water