Prepare the Pumpkin: Place the pumpkin puree in a bowl lined with paper towels and let it sit for a few minutes to remove extra moisture. You should end up with around 1 and 1/3 cups. This step is important to prevent overly wet dough.
Preheat the Oven: Set your oven to 350°F (177°C). Line baking sheets with parchment paper or silicone mats.
Mix the Dry Ingredients: In a large mixing bowl, whisk together the flour, baking powder, baking soda, salt, pumpkin pie spice, cinnamon, and ginger until evenly combined.
Cream the Butter and Sugars: Using a mixer, beat the softened butter with the brown and granulated sugars on medium speed until smooth and creamy, about 2 minutes. Add the egg, then mix in the maple syrup, vanilla extract, and the blotted pumpkin puree.
Combine Wet and Dry Mixtures: Add the dry ingredients to the wet mixture and blend on low speed until just combined. Do not overmix.
Shape and Bake: Scoop about 1.5 tablespoons of dough per cookie and place them 3 inches apart on the prepared baking sheets. Bake for 14-15 minutes, or until edges are set. Cool on the baking sheet for 5 minutes before transferring to a wire rack.
Make Optional Icing: Beat softened cream cheese until smooth, then add butter. Gradually add confectioners’ sugar, maple syrup, and cinnamon. Mix on low until creamy. Spread or dip cooled cookies.
Store Cookies: Let cookies cool completely before storing. Keep iced cookies in an airtight container at room temperature for up to 2 days, or refrigerate for up to 1 week.