Preheat your oven to 350°F (175°C) and line two baking sheets with parchment paper.
In a large mixing bowl, combine the softened butter, pumpkin puree, maple syrup, and brown sugar. Beat these ingredients until smooth and creamy.
In a separate bowl, whisk together the flour, baking soda, salt, and cinnamon. Gradually add the dry mix to the wet ingredients, mixing just until combined. Be careful not to overmix.
If time allows, refrigerate the dough for 30 minutes. This is crucial for a better cookie texture.
Using a tablespoon or cookie scoop, drop the dough onto the prepared baking sheets, spacing them about two inches apart.
Bake in the preheated oven for 10-12 minutes, or until the edges are lightly golden. The centers should look slightly underbaked as they will continue to firm up once out of the oven.
Let the cookies cool on the baking sheets for 5 minutes before transferring them to wire racks to cool completely.