Pumpkin Spice Cookies

1/2 cup butter, softened
3/4 cup firmly packed brown sugar
1 large egg
1 teaspoon vanilla extract
1 cup canned or fresh pumpkin puree
2 cups all-purpose flour
1 teaspoon baking powder
1 teaspoon ground cinnamon
1/2 teaspoon baking soda
1/2 teaspoon salt
1/2 teaspoon ground nutmeg
1/2 teaspoon ground ginger
1/4 teaspoon ground clove

Preheat oven to 350°F. Lightly grease cookie sheets.
Cream together butter with brown sugar until smooth. Beat in egg and vanilla. Beat in pumpkin purée.
In another bowl, combine flour, baking powder, cinnamon, baking soda, salt, nutmeg, ginger, and clove. Add to butter mixture and beat well to combine.
Drop by tablespoonfuls onto prepared sheets. Bake about 18 minutes, until set, not browned. Transfer to racks to cool.
Top with cream cheese frosting, sprinkle with nutmeg.