Cream together sugars, butter, and shortening. Beat in eggs and vanilla. Combine flour, salt, and soda. Beat into first mixture. Add remaining ingredients and knead into first mixture. Drop by heaping teaspoonful two inches apart in greased baking sheet. Bake in pre-heated 350° oven about 8 min. or until cookies are nicely browned. Let cookies cool. Store in airtight container. Makes 7 doz. For best results, shape dough into rolls, wrap, and chill several hrs. Slice and bake.