Whisk the flour, 1/2 Cup Guittard Cocoa Rouge 22/24% Dutched Cocoa Powder (8oz) + 2 tbsp Guittard Cocoa Rouge 22/24% Dutched Cocoa Powder (8oz), baking soda, and salt together in a large bowl. Set aside.
In a large bowl using a hand-held mixer or stand mixer fitted with a paddle attachment, beat the butter, cane sugar, and brown sugar together on medium high speed until fluffy and creamed, about 2 minutes. Beat in egg and vanilla on high speed. Scrape down the sides and bottom of the bowl as needed.
On low speed, slowly mix the dry ingredients into the wet ingredients until combined, then beat in the 1 Cup Guittard Santé No-Sugar-Added 72% Dark Chocolate Baking Wafers. The cookie dough will be thick and sticky. Cover dough tightly with aluminum foil or plastic wrap and chill for at least 2 hours and up to 3 days. Chilling is mandatory for this cookie dough.
Remove cookie dough from the refrigerator and allow to sit at room temperature for 15 minutes. You can preheat the oven during this time.
Preheat oven to 350°F. Line two large baking sheets with parchment paper or silicone baking mats. Set aside.
Scoop and roll balls of dough, about 1.5 Tablespoons of dough each, into balls. Roll each ball very lightly in cane sugar, then generously in the confectioners’ sugar. Place 3 inches apart on the baking sheets.
Bake the cookies for 11-12 minute. The cookies will be thick, but will deflate slightly as they cool!
Cool cookies for 5 minutes on the baking sheet, then transfer to a wire rack to cool completely, and enjoy!