Easy Red Lentil Soup

Heat oil in large saucepan over medium-high heat. Add carrot, celery and onion; cook, stirring occasionally, for 5 minutes or until almost tender.

Add water, lentils, bouillon and bay leaf; bring to a boil. Reduce heat to low; cover. Cook for 20 minutes or until lentils are tender and have broken down.

Season with pepper. Add splash of vinegar if desired.