You need a good size soup pot for this recipe.Cut onion in small pieces. Garlic should be chopped till its almost in a paste. Drizzle olive oil bottom of soup pan over low heat cook tender and onion is clear. In the mean time slice the celery , carrot like quarters, peel and cut into cubes for the sweet potato add to pot. Cook another five minutes then add all other veggies.Put cold water in pan till veggies are covered about ten cups.
wait for water to come to a boil add the bouillon cubes to water stir then put cover on soup pot and set to a simmer for about three hours stirring occasionally or when veggies are soft.
At about ten minutes before cooking time over add chopped parsley and the lemon juice stir .