Mix powdered sugar, sugar, butter, eggs, vanilla and oil. Sift flour and baking soda together. Fold into butter and sugar mixture. Cover tightly with plastic wrap and chill in refrigerator overnight. Roll a teaspoon of dough into a ball. Place 2" apart on greased cookie sheet, flatten slightly with a glass dipped in sugar. May color sugar if desired. Bake at 350° for 8-10 minutes. |