In a medium bowl, whisk together the flour, salt, and baking soda to combine. Set aside.
Add the brown and maple sugars to the cooled brown butter bowl and whisk vigorously until the mixture is very smooth and thick, about 45 seconds.
Add the eggs and vanilla and whisk until the mixture is satiny, about 45 seconds.
Add the flour mixture and whisk until the batter is smooth and well combined.
Add both the chocolates (whole disks and chopped) and mix to combine. Set the batter aside for 5 minutes to firm up slightly.
Scoop the dough into 2 oz scoops and place on a silicone lined cookie sheet covered with plastic wrap. Refrigerate for 12-48 hours.