Step 1: Make the Dough

1. Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper.

2. In a large bowl, cream together butter, brown sugar, and granulated sugar until light and fluffy.

3. Mix in the pumpkin puree, egg yolk, and vanilla until well combined.

4. In another bowl, whisk together flour, baking soda, salt, and spices.

5. Slowly add the dry ingredients to the wet, mixing until just combined.

Step 2: Add the Mix-Ins

1. Fold in chocolate chunks, mini marshmallows, and graham cracker crumbs.

2. Use a cookie scoop to place dough balls (about 2 tbsp each) onto the baking sheet, spaced about 2 inches apart.

Step 3: Bake

1. Bake for 10–12 minutes, or until edges are golden and centers are just set.

2. Remove from oven and gently press a few extra chocolate chunks or graham crumbs into the tops of the cookies if desired.

3. Let cool for 5 minutes on the sheet before transferring to a wire rack.