So here is the recipe
1. put water and sugar into the bowl and boil it until the sugar is prefectly melted to make some syrup
2. Put the syrup and the iced raspberry in the mixer and grind it.
3. Put No.2 into the refrigerater for 1 or 2 hours and put it in the ice-cream machines
4. Stirr it for 15~20 minutes to make it as a sherbert
If you weed out the seeds after No.2 the sherbert will be more soft and delicious