Preheat oven to 350 degrees and prepare a 9x9 square pan with parchment paper
In a medium bowl combine the flour, baking soda, salt, cinnamon, ginger and nutmeg; set aside
In a large mixing bowl, whisk together the melted butter, pumpkin puree and light brown sugar until fully combined
Whisk the egg into the pumpkin mixture and mix until smooth
Slowly add in the dry ingredients into the pumpkin mixture and mix until fully combined and smooth
Fold the chocolate chips into the cookie mixture and spread the batter into the prepared pan
Mix together the cinnamon and sugar and sprinkle it on top of the cookie batter to cover the top
Bake the Pumpkin Chocolate Chip Cookie Bars for 18-20 minutes
Remove the bars from the oven and allow them to cool completely before cutting and serving