Prepare the ingredients: potato, egg, broth, onion, green onion, sesame oil, and soy sauce.

Cut the potato into irregular polygon shapes to stimulate visual curiosity for the baby.

Rinse the potato in cold water to remove excess starch and prevent cloudy broth.

Drain the potato using a sieve.

Slice the onion thinly and chop the green onion into small pieces.

Heat 1 tsp sesame oil in a pot over low heat and sauté the potato.

Add half of the broth (350ml) to the pot and bring to a boil over medium heat.

Add the sliced onion and continue boiling over medium heat.

Pour the remaining broth (350ml) into the pot and add the green onion and soy sauce.

Beat the egg and pour it in a thin stream while drawing circles in the pot. Do not stir.