Walnut Butter Cookies

1 cup all purpose flour
1/2 cup of cornstarch
1/2 cup powered sugar
3/4 cup (1 1/2 sticks) butter, room temp.
1/2 cup coarsely chopped or sliced walnuts.

Preheat oven to 300 degrees. Sift first 3 ingredients into large bowl. Add butter and mix well. Stir in walnuts. Drop by rounded teaspoonfuls onto baking sheet. Bake until cookies are golden, about 20 minutes.