Set your oven to 350°F and line a baking sheet with parchment or lightly grease it to prevent sticking.
In a large mixing bowl, stir together the spice cake mix and pumpkin purée until the batter is thick and fully blended.
Fold in 1 cup of the chocolate chips, mixing just enough to distribute them throughout the dough.
Scoop about 2 tablespoons of dough per cookie onto the baking sheet, leaving space between each to allow for slight spreading.
Bake for 12 to 15 minutes, or until the cookies are puffed and set, with lightly golden edges.
Remove from oven and place the remaining ½ cup of chocolate chips into the top of the cookies, pressing in lightly.
Allow the cookies to cool on the baking sheet for 3–5 minutes, then transfer them to a wire rack to cool completely.