Chop up Werthers Echte in the Thermomix, add block chocolate and also chop up. Add the cream and vodka and heat to 80 degrees for 5 minutes. Add Japanese medicinal plant oil (cold oil) and fill into bottles.
Possibly also works without Thermomix: Put Werthers Echte in a freezer bag and mince with a meat tenderizer, bring the cream to the boil, melt the chopped candy and chopped chocolate in it, allow to cool a little. Add vodka and peppermint oil and fill into bottles.