Put the cream in a cooking pot and heat it until just before boiling and remove from the heat. Break the chocolate into smaller pieces and put it in the cream.
Leave for a minute or two for the chocolate to soften nicely, then start mixing it and continue until you get a nicely bound ganache.
Allow to cool, then place in the refrigerator for at least 2 hours to harden.
Grind the pistachio into powder (use kitchen blender) and add a little salt if it is unsalted. If the pistachio is already salty, skip the salt.
Take the hardened ganache and with the help of a teaspoon and your hands, form a small ball, roll it in pistachios and place it on a serving piece of paper or tray.Continue until you run out of ingredients.