Place the caster sugar and water into the Thermomix bowl. Heat for 4 minutes, 100 degrees, Speed 2 (or until the sugar has dissolved).
Add the lemon juice and mix for 5 seconds, Speed 2.
Add the egg white and mix for 5 seconds, Speed 4.
Pour the lemon liquid into plastic containers and freeze overnight.
To make the sorbet, remove the frozen lemon mixture from the containers and cut into large chunks.
Place into a clean and dry Thermomix bowl and mix for 20-30 seconds, Speed 9 (using the spatula through the MC hole to push down the chunks).Reduce to Speed 4 and mix for 50 seconds (using the spatula through the MC hole to help mix).
Serve immediately
Notes
RECIPE NOTES & TIPS
use freshly squeezed lemon juice
we use a higher ratio of lemon juice to water than most recipes... giving you the ultimate lemon flavour
the lemon liquid needs to be frozen overnight before being made into sorbet
cut large chunks and place them into the Thermomix. Use the spatula through the MC hole to help push the chunks down.
serve immediately as the sorbet will begin to melt
place any leftover sorbet into a container and freeze for up to 1 month. When you're ready to use it, allow it so sit at room temp for a couple of minutes to soften enough to be able to scoop.