Brown the unsalted butter
Mix flour, baking soda, and kosher salt in a bowl
Combine browned butter, dark brown sugar, and granulated sugar
Add eggs and vanilla extract to the butter mixture
Combine wet and dry ingredients
Fold in chopped dark chocolate, crushed Skor bars, and espresso powder
Let dough rest in fridge for 30 minutes
Scoop cookies onto baking sheet
Bake at 375°F for 9-13 minutes (approximately 11 minutes for 18 cookies)
Fix any imperfections while cookies are still hot and malleable
Finish with flaky sea salt
