Chop the dark chocolate into small pieces.
Put chocolate in a mixing bowl.
Heat heavy cream until it just boils.
Pour hot cream over the chocolate immediately.
Let it sit for two minutes.
Stir until smooth and completely melted.
Add butter to the chocolate mixture.
Stir until the butter melts completely.
Mix in orange zest and orange juice.
The orange smell will be amazing.
Stir everything together until well combined.
Cover the bowl with plastic wrap.
Put it in the refrigerator for two hours.
The mixture needs to become firm.
Don't skip this chilling time.
Line a baking sheet with parchment paper.
Use a small scoop to make balls.
Roll each ball between your palms quickly.
Work fast so they don't melt.
Place each truffle on the baking sheet.
Put cocoa powder in a shallow bowl.
Roll each truffle in the cocoa powder.
Make sure they're completely covered.
You can add crushed candy canes too.
Refrigerate until you're ready to serve them.