Preheat your oven to 350°F (175°C).
In a large mixing bowl, whisk together the flour, baking soda, salt, and pumpkin spice blend.
In another bowl, cream together the softened butter, brown sugar, and granulated sugar until the mixture is light and fluffy.
Add in the egg, vanilla extract, and pumpkin puree; mix until well incorporated.
Gradually fold the dry ingredient mixture into the wet ingredients, incorporating just until no flour streaks remain.
Carefully stir in the chocolate chips to evenly distribute them throughout the dough.
Drop rounded tablespoons of dough onto a parchment-lined baking sheet, spacing them about 2 inches apart.
Bake for 12-15 minutes, or until the edges are lightly golden brown.
Allow the cookies to cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely.