Combine first five ingredients in a large bowl. Beat until smooth.
Combine flour, soda, creams of tarter, and salt.
Add to butter mixture. Beat until smooth. Stir in vanilla and chocolate
Shape mixture into 1" balls. Roll in granulated sugar.
Put 2" apart on ungreased cookie sheets and bake at 395 degrees for 10-12
Cool. Can wrap well and freeze.
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