In a small mixing bowl, combine the flour, baking powder, and sea salt. Set aside.
In a medium sauce pan, over medium heat, combine the vanilla sugar, butter, and baking chocolate. Stir frequently and remove from heat when chocolate and butter are melted.
Stir in the eggs, one at a time, until incorporated.
Stir in the vanilla and peppermint extracts.
Stir in flour mixture until well incorporated.
Cover and chill for 1 hour.
Remove from fridge and stir in the M&M's Minis Baking Bits.
Cover and chill for 1 hour.
Preheat oven to 350 degrees Fahrenheit. Line 2 baking sheets with parchment paper.
With a small cookie scoop, portion out the dough, rolling in granulated sugar and then placing on baking sheets, about 2 inches apart.
Bake 10-12 minutes, being careful not to overbake.
Let sit for 2 minutes on baking sheet, then remove to wire racks to cool completely.