01 -
Heat your oven to 350°F and line two baking sheets with parchment paper. Pat the pumpkin puree with paper towels to remove excess moisture for chewier cookies.
02 -
Melt the butter in the microwave and set it aside to cool slightly while you prepare the other ingredients.
03 -
In a large bowl, whisk together the flour, baking soda, baking powder, salt, cinnamon, nutmeg, and pumpkin pie spice. If you haven't already, pulse graham crackers in a food processor to make fine crumbs.
04 -
In another bowl, mix the cooled melted butter with both sugars until well combined. Stir in the vanilla, graham cracker extract, pumpkin puree, and egg yolk until the mixture is smooth.
05 -
Gently fold the dry ingredients and graham cracker crumbs into the wet mixture until just combined. Don't overmix! Fold in the chocolate chips last.
06 -
Using a large cookie scoop or spoon, drop generous portions of dough onto your prepared baking sheets, spacing them well apart. Gently press each cookie down slightly with your hand. Bake for 12 minutes.
07 -
Remove cookies from oven and quickly place marshmallow halves on top of each warm cookie. Return to oven for 1-2 minutes until marshmallows are puffed and golden. Let cool on the baking sheet for 5 minutes before transferring to a wire rack.