In a small saucepan, combine chocolate.
Add cream and turn on low heat, stirring constantly with a heat-proof spatula.
Heat and stir until blended and smooth. Next, add espresso powder and vanilla.
Stir until smooth. Pour into a medium sized bowl, cover and place in the freezer to chill. Chill until firm, at least an hour or ideally overnight.
Fill a resealable bag with the candy canes, smash with a rolling pin and set aside.
Use a small cookie scoop to scoop the chocolate truffles on to a rimmed baking sheet covered with parchment paper.
Roll each truffle in crushed candy canes, and place back on parchment paper.
Place finished truffles in the freezer to set and be firm.
Usually at least 15 minutes. The longer the better.