Cream together butter and sugar until light and fluffy, about 3-4 minutes.

Add egg and vanilla, mixing until well combined.

Stir in canned pumpkin until the dough is smooth.

In a separate bowl, whisk together flour, baking powder, baking soda, salt, cinnamon, and nutmeg.

Gradually add dry mixture to wet ingredients, mixing until just combined.

Preheat oven to 350°F and prepare baking sheets.

Drop spoonfuls of dough on sheets and bake for 10-12 minutes.

For the frosting, beat cream cheese and butter until smooth, then add powdered sugar and vanilla.

Cool cookies for 5 minutes, then transfer to wire rack to cool completely before frosting.

Spread cream cheese frosting on cookies generously.