Vegetarian Broth

Ingredients

• 1 large tomato, cut in half
• 1 medium-size onion, cut in half
• 1 tablespoon vegetable oil
• 2 medium-size carrots, peeled and cut in 1/2-inch pieces
• 13 cup celery leaves
• 1 1/2 ounces mushrooms, cut in 1/2-inch pieces
• 1 ounce parsley stems
• 3 medium-size garlic cloves, smashed, peeled and chopped
• 2 ounces cabbage, cut in 1/2-inch slices (optional)
• 1 bay leaf
• Pinch dried thyme
• Pinch dried oregano
• 6 cups water
• 1 1/2 teaspoons kosher salt