Mix together all the ingredients listed for the blueberry sorbet. Filter through a sieve if you wish. Use your ice cream maker if you have on but that’s not mandatory. Pour the mix into your glass and fill up half of it. Put in the freezer for one hour.
For the chocolate sorbet: heat the water in a pan then add all the ingredients. Remove from the heat and allow the chocolate to melt totally. Leave to cool. Again you can use your ice maker to obtain a better texture. Then pour it over the blueberry sorbet. Put back into the freezer until completely frozen. I left it overnight but that shouldn’t take so long.