A simple, quick, flavorful vegetarian broth.
1 small onion
2 leek stalk (the green part)
2 garlic cloves, each sliced in half
1 Tablespoons olive oil
1 1/2 teaspoon salt
8 cups water
1 bay leaf
Chop your onion, leek stalks, and carrots roughly into 1" pieces.
In a medium pot sauté the vegetables in olive oil until they start to soften.