Ingredients :
- 5 large potatoes
 - 2 medium carrots
 - 1 chopped spring onion
 - 5 stalks of celery
 - 1.8 L of water
 - 4 tablespoons of extra virgin olive oil
 - 5 tablespoons of wheat flour
 - 1 cup of liquid whole milk
 - 1 pinch of salt
 - 1 pinch of pepper
 
How to prepare potato soup with vegetables :
- Wash, peel, and cut the potatoes into chunks in cubes of about 1×1 cm.
 - Wash, peel and cut the carrot into pieces of approximately 1×1 cm.
 - Wash and cut the celery into small pieces.
 - In a saucepan, pour the water, add the potato, the carrot, the celery, and a pinch of salt. Cook over high heat for 20 minutes, until the vegetables are soft.
 - Remove and reserve the vegetables. Also, reserve the broth.
 - Peel and cut the spring onion into small pieces.
 - In a large saucepan, pour the olive oil and sauté the onion for about three minutes.
 - Then, with the help of a paddle, add the flour little by little and stir gently until everything is integrated.
 - Pour the milk, a pinch of pepper, and mix. Let it boil, constantly stirring until it thickens.
 - Add salt to taste.
 - Add the reserved vegetables and cook for another minute. Add one cup of the reserved water where the vegetables were cooked.