Rinse the rice thoroughly and soak it in water for at least 30 minutes.
Put water and soaked rice into a pot and bring to a boil.
Stir and simmer over medium heat until the rice softens and expands.
Beat the egg and set aside.
Once the porridge starts boiling and the rice is cooked, gradually pour in the beaten egg while stirring gently.
Season with salt.
When it reaches the desired thickness, turn off the heat and transfer to a bowl.