Follow these steps to create your own batch of delicious bars:

1. Preheat your oven to 350°F (175°C) and line a 9×13 inch baking pan with parchment paper.
2. In a large bowl, cream together the softened butter, granulated sugar, and brown sugar until light and fluffy, about 3-4 minutes.
3. Add the eggs, one at a time, mixing well after each addition. Stir in the vanilla extract and pumpkin puree until fully incorporated.
4. In another bowl, whisk together the flour, baking powder, baking soda, salt, cinnamon, and nutmeg. Gradually add the dry ingredients to the wet ingredients, mixing until just combined.
5. Set aside one cup of the cookie dough. Spread the remaining dough evenly in the prepared baking pan.
6. In a separate bowl, beat the cream cheese, 1/4 cup granulated sugar, 1 egg, and 1/2 teaspoon vanilla extract until smooth and creamy.
7. Pour the cream cheese mixture over the cookie dough in the pan, spreading it evenly.
8. Dollop the reserved cookie dough over the cheesecake layer, using a knife to create a marbled effect.
9. Bake in the preheated oven for 30-35 minutes, or until the edges are golden and the center is set. Allow to cool completely before slicing into bars.

As a tip from my experience, keeping an eye on the baking time is crucial since ovens can vary. The aroma will tempt you to take a peek, but try to resist opening the oven door often to maintain the perfect baking temperature.