In a large mixing bowl, combine vanilla wafer crumbs, powdered sugar, cocoa powder, and crushed candy canes. Stir until evenly blended, ensuring no lumps remain.

In a microwave-safe bowl, melt the dark chocolate in 30-second intervals, stirring between each heating until smooth. Allow to cool, then stir in the homemade mint extract.

Gradually pour the melted chocolate mixture into the bowl with dry ingredients. Fold together until just combined.

Dust your hands with powdered sugar and use a cookie scoop to portion the mixture. Roll into uniform balls about one inch in diameter.

Place the formed energy bites on a baking sheet lined with parchment paper. Refrigerate for at least 30 minutes to firm up.

Once chilled, roll the bites in additional crushed candy cane or cocoa powder if desired. Transfer to an airtight container.