Preheat your oven to 350 F (180 C) and line two baking trays with parchment paper.
In a large stainless steel pan, brown the cold unsalted butter over medium heat until golden brown. Refrigerate until cooled to around 75°F.
Blot the Libby's Pumpkin Puree on a plate with paper towels to soak up excess liquid until you have roughly 1/3 cup of dry pumpkin puree.
Whisk the cooled browned butter with both sugars for one minute until it resembles pale wet sand.
Mix in the egg yolks, vanilla extract, and dried pumpkin puree until smooth and creamy.
Fold in the all-purpose flour, pumpkin spice, baking soda, fine sea salt, and chocolate chips until just combined.
Scoop portions of dough and roll them into balls, placing them on the prepared baking trays with space in between. Bake for 9-13 minutes until edges are golden brown.