Hi Kazz, I made the chocmint cookies the same way I made the crisps but with sparkling water, less water and added sweetner.
I got the recipe from a thread here, I made small cookies instead of one big one and cooked in the microwave for 1.10 minutes. Next time I will add the summer berry flavour to Vanilla.
Black Forest Cookie
Add 1 chocolate pack to sparkling water (3tbls give and take) add half a tsp summer berry flavour and microwave for one minute (let it settle) and you have the fluffiest cookie ever.