Cream margarine, oil and sugars with mixer. Add eggs and vanilla and beat well.

In separate bowl, sift flour, cream of tartar, soda and salt together. Add mixture to creamed mixture and blend well.

Chill dough in refrigerator a minimum of 2 hrs. Using floured rolling pin, roll part of dough into 1/3 inch layer on floured board, keeping remaining dough in refrigerator. Use cookie cutters to cut into desired shapes. Put on greased cookie sheets. Repeat procedure with rest of dough.

Bake in preheated 350 degree oven 10-12 minutes or until cookies have a brown rim. If desired, dough can be shaped into walnut size balls and arranged on baking sheet. Using a glass with a flat bottom, dip glass into granulated sugar and flatten each ball. Return to sugar to dip glass bottom again and repeat procedure on next dough ball.