Ingredients
Equipment
Method
- Heat the oven to 350°F.
- Line two 13x18-inch rimmed baking sheets with parchment paper.
- Whisk the flour, baking soda, cinnamon, nutmeg, and salt in a medium bowl.
- Beat the butter, brown sugar, and granulated sugar in a large bowl until light and fluffy, about 2 minutes.
- Beat in the egg yolk, pumpkin puree, and vanilla until combined.
- Add the flour mixture and mix on low just until no dry flour remains.
- Fold in the graham cracker pieces and chocolate chunks.
- Chill the dough for 30 minutes.
- Scoop the dough into 18 portions, about 2 tablespoons each.
- Arrange 9 portions on each baking sheet with space between them.
- Bake for 8 minutes.
- Remove the sheets from the oven and press 3 or 4 mini marshmallows onto each cookie.
- Return the sheets to the oven and bake for 3 to 5 minutes, until the edges are set and the marshmallows are puffed.
- Cool the cookies on the baking sheets for 10 minutes.
- Transfer the cookies to a wire rack to cool.
Notes
For the best texture, chill the dough for the full 30 minutes. Store cookies in an airtight container in the refrigerator for up to 5 days; freeze baked cookies for up to 2 months. Dairy-free butter and chocolate chunks can be used as a swap.
