Transfer the mixture into a bowl and refrigerate for at least 30 minutes until firm like thick pudding.
Use a spoon to scoop and roll into balls between your palms.
Dust with icing sugar if desired and chill again until ready to serve or store.
Notes
Keep leftovers refrigerated in an airtight container for up to one week or freeze for longer storage. Let frozen truffles thaw in the fridge before serving.