Preheat your oven to 350 degrees and line your baking sheet with parchment paper.
In a small bowl, sift your flour, pumpkin pie spice, baking soda, and salt together.
Use the whisk attachment with your standing mixer and whisk eggs and sugar for at least 3 minutes on medium-high speed. You will whisk until light and fluffy. This is an important step to create a nice airy texture. Scrap the sides of the bowl as needed.
Reduce the speed to low. Add the 6 tablespoons of melted butter and the pumpkin. Mix until incorporated, scraping the sides of the bowl as needed.
Slowly add the flour mixture, scrap the sides of the bow while adding. You will mix until just combined. Turn off the mixer and then fold the mixture to completely combine.
Drop with a 1 ounce scoop onto your prepared cookie sheet. Do not flatten, leave in the ball.
Bake for 12 minutes and cool on a cooling rack.