Bake the pumpkin. Preheat the oven to 175 degrees C. In a medium bowl, mix chopped cookies, nuts and butter. Put the cookie mixture into a mold and press down. Bake for 10 minutes in a preheated oven. Set aside to cool.
In a medium bowl, mix the cream cheese, 100 g. sugar, cocoa, vanilla and mix until smooth. Add eggs one at a time. Set the dough aside. Combine the rest of the sugar, pumpkin, cinnamon, and nutmeg in the remaining mixture.
Put the pumpkin on the prepared cookies, add the dough and mix lightly to make a marble effect.
Bake for 55 minutes in a preheated oven. Let the cake stand for 4 hours. Decorate as desired.