Lentil Soup
["2 c. lentils", "8 c. water", "1/2 c. chopped onion", "2 cloves minced garlic", "1/2 c. chopped carrots", "1/2 c. chopped celery", "1/4 c. olive oil", "1 tsp. salt", "1/2 tsp. pepper", "3 Tbsp. tomato paste", "2 bay leaves", "1/2 tsp. oregano", "3 Tbsp. wine vinegar", "ham hock (optional)"]
["Soak lentils overnight in 2 cups water.", "Saute onion, garlic, celery and carrots in oil.", "Add drained lentils, 6 cups of water, salt, pepper, tomato paste, bay leaves and oregano.", "Bring to a boil.", "Cook until lentils are soft.", "Remove bay leaves.", "Add vinegar."]
["lentils", "water", "onion", "garlic", "carrots", "celery", "olive oil", "salt", "pepper", "tomato paste", "bay leaves", "oregano", "wine vinegar", "ham hock"]