Preheat the oven to 350°F (175°C).
In a large mixing bowl, beat together the softened cream cheese, pumpkin butter, granulated sugar, and brown sugar until smooth.
Add the egg and vanilla extract to the mixture and beat until fully incorporated.
In a separate bowl, whisk together the flour, baking soda, cinnamon, nutmeg, and salt.
Gradually mix the dry ingredients into the wet mixture until just combined, being careful not to overmix.
Drop rounded tablespoons of cookie dough onto a lined baking sheet, spacing them about 2 inches apart.
Bake for 12-15 minutes or until the edges are lightly golden, and the centers appear set.
Allow the cookies to cool on the baking sheet for about 5 minutes before transferring them to a wire rack to cool completely.