# Clean the
leeks and wash them. Slice the green and white parts of them finely.
# Put sunflower oil into a pot and make it hot over medium heat. Then, add the
leek pieces and mix it. Cover the lid of the pot, turn the heat to low and cook it for half an hour.
# At the end of the cooking time, add 2 cups of hot broth or water on it. Boil the mixture for a while, after it reaches to the boiling temperature, then remove it from the stove.
# Blend the
leek to turn into puree and put them into the pot again.
# Add 5 cups of hot broth or water on it.
# Place the pot over medium heat. When the soup starts to boil, add thickly grated
carrot and
potato in it. Cook it for about 15 minutes, by stirring time to time.
# Add salt, black
pepper and
milk in it. Remove the pot from the stove in a short time, to prevent the
milk turn to bad.
# Serve it hot.
