Grab out your egg and butter and allow to come to room temperature. Preheat your oven to 350 degrees fahrenheit. Grab a 8x8 baking dish and line with parchment paper. Set aside.
In a medium bowl combine: flour, cinnamon, nutmeg, salt, and baking soda. Set aside.
In a separate bowl use a hand mixer to cream together the room temperature butter and brown sugar. Then add in the vanilla, pumpkin, and egg and mix again.
Slowly combine the dry ingredient bowl into the wet ingredient bowl. Once combined add in the chocolate chips. Use a large spoon to carefully disperse them throughout the dough.
Add the dough to the lined baking dish. Flatten to be even. If you would like to add additional chocolate chips, do so now.
Bake in the oven for 30 minutes. If you would like them to be less gooey, bake for 35 minutes.
Once a toothpick can be poked in the center and come out clean, remove from the oven. Allow the bars to cool in the baking dish.
Once the pumpkin chocolate chip bars are completely cool remove from the baking dish and slice into 9 even pieces. Enjoy!
Notes
Store in an airtight container
Freeze individual pieces in the freezer for up to 3 months