Preheat oven to 350 degrees then line a half sheet pan with a silpat or parchment paper and set aside.
Add butter and 1 cup sugar to the bowl of an electric mixer or large glass bowl if using a handheld mixer. Beat until lightly and fluffy. Add pumpkin puree, molasses, and vanilla then beat until combined. Add egg then mix until just combined.
In a separate bowl stir together flour, baking soda, cinnamon, 1-1/2 teaspoons ground ginger, ground cloves, and salt. Add to the wet ingredients in two batches, mixing until just combined before adding the second batch. Add dark chocolate chips then mix until just combined.
Stir together remaining 3/4 cup sugar and 3 teaspoons ground ginger in a bowl then scoop cookie dough by the Tablespoon into the mixture and roll to coat. Place onto prepared baking sheet then bake for 7-8 minutes — do not overbake. Rap the sheet pan on the counter (aka drop the sheet pan from a couple inches above the countertop onto the countertop) then let cookies cool slightly before transferring to cooling racks to cool completely.