Makes 2 quarts Ingredients 1 tablespoon canola oil 2 leeks, white and green parts, diced 1 onion, diced 1 carrot, diced 1 celery stalk, diced 1 red bell pepper, seeds and ribs removed, diced 2 garlic cloves, minced 2 plum tomatoes, canned, coarsely chopped 2 white or yellow potatoes, peeled […]