Lentil Soup(Greek) - cooking recipe

Ingredients

1 c. lentils
2 qt. beef or chicken broth
salt and pepper
1 onion, chopped
1 carrot, chopped
1 clove garlic, minced
1/4 c. olive oil
1/2 c. tomato sauce
vinegar (optional)

Preparation

Simmer lentils in stock with salt and pepper to taste for 1 hour. Add remaining ingredients, except vinegar.
Cook until vegetables are tender, about 1/2 hour. Add a teaspoon of vinegar to each bowl as it is served, if desired.
Cooking time:
1 1/2 hours.