Take a multicooker, open and unlock the lid by turning the handle to the unlock position. With the lid still open, turn the handle to the lock position.
Pre-heat the cooker by pressing the [MENU SELECTION] button to select the [OVEN] function. Set the cooking time for 10 minutes and heating level 3 then press [COOK]
Pour cooking oil into the cooker and add the tomatoes. Stir-fry until its softened and start to fall apart.
Add in chicken stock, water, soy sauce and sesame oil. Season it with pepper and salt. Bring it to a boil for 2 minutes.
Using a ladle, slowly swirl the soup in a whirlpool motion. Keep swirling as pouring in the pre-mix water until well incorporated.
Pour a thin stream of egg into the middle of the whirlpool as slowly swirl the soup.