Pumpkin Walnut Cookies

1 cup (2 sticks) butter, (we recommend LAND O LAKES� Butter), softened
2/3 cup firmly packed brown sugar
1/3 cup granulated sugar
1 cup LIBBY'S 100% Pure Pumpkin
1 large egg
1 teaspoon vanilla extract
2 cups all-purpose flour
1 1/2 teaspoons pumpkin pie spice or ground cinnamon
1 teaspoon baking powder
1 teaspoon baking soda
1/4 teaspoon salt
1 cup walnuts, chopped
2 cups powdered sugar
1/4 cup (1/2 stick) butter, (we recommend LAND O LAKES� Butter)
1 package (3 oz.) cream cheese
1 teaspoon vanilla extract
1/4 teaspoon pumpkin pie spice or ground cinnamon
walnut pieces (optional)

PREHEAT oven to 350� F.

FOR COOKIE: COMBINE butter, brown sugar and sugar in large mixer bowl. Beat at medium speed, scraping bowl often, until creamy. Add pumpkin, egg and vanilla extract. Continue beating for 1 to 2 minutes or until well mixed. Reduce speed to low; beat in flour, 1 1/2 teaspoons pumpkin pie spice, baking powder, baking soda and salt. Stir in 1 cup walnuts by hand. Drop by rounded teaspoonfuls 2 inches apart onto ungreased cookie sheets.

BAKE for 8 to 10 minutes or until set. Cool on baking sheets for 2 minutes; remove to wire racks to cool completely.

FOR FROSTING:
COMBINE powdered sugar, butter, cream cheese, vanilla extract and pumpkin pie spice in medium mixer bowl. Beat at low speed, scraping bowl often, until smooth. Frost cooled cookies. Garnish with walnuts.