Greek Lentil Soup - cooking recipe

Ingredients

1 onion, chopped
5 carrots, chopped
5 stalks celery, chopped
5 cloves garlic, chopped
4 cups water, or as needed
1 teaspoon olive oil, or to taste
2 bay leaves
salt and ground black pepper to taste
1 (16 ounce) package dry lentils
1 teaspoon vinegar, or to taste

Preparation

Combine onion, carrots, celery, and garlic in a stockpot; add enough water to cover vegetables. Bring mixture to a boil; add oil, bay leaves, salt, and pepper. Reduce heat and simmer vegetables until slightly tender, about 15 minutes.
Stir lentils into soup; simmer until lentils are tender, 30 to 45 minutes. Stir in vinegar. Cool soup slightly before serving.