Preheat the Oven: Start by preheating your oven to 350°F (175°C). Line two baking sheets with parchment paper.
Mix Wet Ingredients: In a large mixing bowl, combine the softened butter, granulated sugar, brown sugar, and pumpkin puree. Mix until well combined, then add the egg and mix until smooth.
Combine Dry Ingredients: In another bowl, whisk together the flour, baking soda, and any spices you wish to include (like cinnamon or nutmeg) for added flavor.
Combine Mixtures: Gradually add the dry ingredients to the wet ingredients, stirring until just combined. Be careful not to overmix.
Add Mix-Ins: Fold in the chocolate chips and graham cracker crumbs. Make sure they are evenly distributed throughout the dough.
Scoop and Bake: Use a cookie scoop or tablespoon to drop the dough onto the prepared baking sheets, leaving about 2 inches between each cookie. Bake for 10-12 minutes.
Cool: Once baked, allow the cookies to cool on the baking sheets for about 5 minutes before transferring them to wire racks to cool completely.