Add the chocolate and cream to a microwave-safe bowl, and heat in 30 second intervals, stirring after each one, until melted and smooth.
Whisk in the butter and peppermint extract until fully melted and combined.
Cover the bowl tightly with clingfilm and refrigerate for at least 2 - 4 hours, or overnight until firm enough to scoop.
For the Chocolate Coating
Line a large baking tray with parchment paper. Set aside.
Roll the truffle mixture into 1oz balls and place them onto the prepared baking tray. If the mixture becomes too sticky, lightly coat your hands in cocoa powder to make the process easier. Refrigerate for about 30 minutes.
Add the chocolate and oil to a microwave-safe bowl or jug, and heat in 30 second intervals, stirring after each one, until melted and smooth.
Dip each ball into the chocolate and place back onto the baking tray. Sprinkle with crushed candy canes, and allow the truffles to set at room temperature or in the fridge.
Or if you'd prefer, simply roll these truffles in cocoa powder, crushed candy canes, or sprinkles!
Video
Notes
Truffles can be kept in an airtight container, layered between parchment or wax paper, at room temperature or in the fridge for up to 1 week. They also freeze well for up to 2 months. Thaw overnight in the fridge.