Instructions: Preheat oven to 375F. Cream butter; add sugar, eggs, vanilla and sour cream. Gradually add dry ingredients, mixing only until combined. Stir in chocolate chips and nuts, if desired. Drop by spoonfuls onto cookie sheets, leaving at least 2" between them, as they will spread. Bake 12-14 mins; cool on racks. Store in a tightly sealed container.

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