In the bowl of a stand mixer beat your butter until soft. Add your sugar and brown sugar and whisk until combined. Then add your egg, pumpkin, and vanilla. Mix until combined.
In the same bowl add your flour, oats, baking soda, cinnamon, ginger, nutmeg, clove, salt. Mix on slow until evenly combined.
Using a spatula fold in your butterscotch chips.
Line your cookie sheet with parchment paper. Roll out your cookies using a large cookie scoop or about 1 heaping spoons worth of dough. Roll each into a ball and place on cookie sheet. Make sure to spread them out to leave room for them to grow. Using your fingers, slightly press down on the tops of your cookies (Not too much).
place cookie sheet into the freezer to chill for about 30 minutes. This is crucial. Pre-heat oven to 375 degrees
Bake cookies for 12 minutes on the center rack. They should looked fully cooked in the center and slightly crisp on the edges.
Enjoy!