Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.

In a large mixing bowl, cream together ½ cup softened unsalted butter, ½ cup brown sugar, and ½ cup granulated sugar until light and fluffy, about 2-3 minutes. Then, mix in 1 large egg and 1 cup pumpkin puree until fully combined.

In a separate bowl, whisk together 2 cups all-purpose flour, 1 teaspoon baking soda, 1 teaspoon pumpkin spice, and ½ teaspoon salt. Gradually add this mixture to the wet ingredients, stirring gently until just combined.

If you wish, fold in ½ cup chocolate chips or chopped nuts for an extra layer of flavor and texture.

Drop heaping portions of the dough onto the prepared baking sheet, spacing them about 2 inches apart.

Bake for 10-12 minutes, or until edges are lightly golden but centers are still soft.

Remove from oven and let cool on the sheet for about 5 minutes before transferring to a wire rack.