Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper or a silicone baking mat.
In a saucepan over medium heat, melt the butter. Continue cooking until it turns golden brown and develops a nutty aroma, about 5-7 minutes. Remove from heat and let it cool slightly.
In a mixing bowl, combine the brown butter, granulated sugar, and brown sugar. Whisk until smooth.
Add the pumpkin puree, maple syrup, eggs, and vanilla extract to the butter mixture. Mix until well blended.
In another bowl, whisk together the flour, baking soda, baking powder, cinnamon, nutmeg, ginger, and salt.
Gradually add the dry ingredients to the wet ingredients, stirring until just combined. Do not overmix.
Drop rounded tablespoons of cookie dough onto the prepared baking sheet, leaving enough space between each cookie.
Bake in the preheated oven for 10-12 minutes, or until the cookies are lightly golden around the edges. They will continue to set as they cool.
Allow the cookies to cool on the baking sheet for 5 minutes before transferring them to a cooling rack to cool completely.