German chocolate crinkle cookies

1 pk Pillsbury Plus German
           - chocolate cake mix
    1/2 c  Instant Mashed potato flakes
      1 ts Cream of tartar
      1 ts Cinnamon
    3/4 c  butter/margarine , melted
      3 tb Milk
      1    Egg
    1/2 c  Chopped nuts
    1/4 c  To 1/2 c sugar

----------------------------------FrostiNG----------------------------------
      1 c  Powdered sugar
      2 ts Unsweetened cocoa
      1 tb Soft margarine or butter
      1 tb To 2 tb milk
 
  Heat oven to 350. Combine first 7 ingredients; blend well. Stir in nuts.
  Let stand 5 minutes. Drop by rounded teaspoonfuls into sugar; gently toss
  until sugar coated. Place 2 inches apart on ungreased cookie sheets.
  
  Bake at 350 for 8 to 10 minutes.  (Cookies will be soft in center.)  Cool 1
  minute; remove from pans.
  
  If desired, frost cookies. Combine frosting ingredients; blend until
  smooth.  Spread on cooled cookies. Yield: 4 to 5 dozen. HIGH ALTITUDE --
  above 3500 feet: bake at 375 for 10 to 12 minutes. From: Pillsbury
  America's Bake-off, 1978.