Put 400 grams of water and sugar in the bowl, dissolve: 5 min. 100° speed 3.

Add the rest of the water (250 g) and the lemon juice, mix: 5 sec. speed. 3.

Add the egg white, mix: 5 sec. speed. 4.

Pour the resulting mixture into a wide, low container and cover with plastic wrap.

Allow to cool completely at room temperature and then place the container in the freezer for at least 8 hours.

At this point, take back the container and cut the mixture into pieces and place them in the mug, stir: 30 sec. vel. 9.

Stir again: 30 sec. speed. 4 with a spatula (mix with the help of the spatula through the hole in the lid).

The creamy lemon sorbet thermomix is ready to be served... Buon appetito!