Preheat oven to 350.

Beat butter, sugar, eggs, and vanilla until light and fluffy.

In a large bowl stir together flour, cocoa powder, baking soda, and salt.

Slowly add flour mixture to butter mixture until well combined.

Stir in chocolate chunks.

Use cookie scoop to drop cookies onto ungreased baking sheet.

Bake 8 to 10 minutes.

Cool slightly then transfer to wire rack to cool completely.

For the Ganache:

Heat heavy cream in a medium saucepan. Pour hot cream over chocolate chips in a medium bowl. Allow to sit for 1-2 minutes while cream melts the chocolate. Whisk until smooth.

Spread ganache over cookies and top with crushed candy cane pieces. Allow to cool for 30 minutes.