1. Preheat oven to 350 degrees. Grease and flour an 8 x 8 inch baking dish.
2. Whisk together butter and browned sugar.
3. Whisk in egg and vanilla. Fold in flour, salt, pumpkin spice and pumpkin puree.
4. Mix well. Fold in chocolate chips. Scoop and spread mixture evenly into prepared pan.
5. Bake for 35 - 40 minutes or until toothpick inserted comes out clean.
6. Remove from oven and allow to cool several minutes before slicing.