Red Velvet Rich Cookies

1 pouch (1 lb 1.5 oz) Betty Crocker® sugar cookie mix 1/3 cup unsweetened cocoa 1/4 cup butter or margarine, softened 1/4 cup sour cream 1 tablespoon red food color 1 egg 1/4 cup chopped nuts For the Cream Cheese Frosting: 1 pound cream cheese, softened 2 sticks butter, softened 1 teaspoon vanilla extract 4…