The mixing order on this cookie is also unique!
Mix butter just to break it down.
Add sugars and mix just to combine-not cream.
Add all of the chocolates and mix.
Add all the dry ingredients and stir, including sprinkles.
Mix eggs and vanilla in a bowl and add last just until dough all comes together in mixer.
Weigh out balls of 125 grams press down just a bit. Bake at 350 10-14 minutes until edges are golden.
(Can bake on a hot cookie sheet for crispier edges.)