Place the following ingredients into a blender: a cup of double cream, a cup of coconut milk, a quarter cup of cocoa powder, the sweetener, vanilla essence and xanthan gum. Put the blender at maximum speed for about 3 minutes. Turn off and taste the mixture. Add more sweetener if desired.
Add half of the nuts and a few drops of chocolate to the mix and turn on the blender for 5 seconds max.
Pour the mixture into the silicone molds and refrigerate for one to two hours. Remove from the freezer and insert wooden sticks. If you are using a mold with plastic sticks, you can skip this step.
Leave in the freezer for at least 6 hours. This depends on your fridge and the temperature.
Melt the chocolate in a double boiler, decorate the popsicles with melted chocolate and the remaining pieces of nuts. Enjoy with your friends and family.