1/2 c. butter (no substitutes), softened
1/2 c. vegetable oil
1/2 c. sugar
1/2 c. confectioners sugar
1 egg
1/2 tsp. vanilla
2 1/4 c. flour
additional sugar
1/2 tsp. cream of tartar
1/2 tsp. baking soda

In mixing bowl, cream butter, oil and sugars. Add egg and vanilla. Combine flour, baking soda and cream of tartar; gradually add to the creamed mixture. Chill for several hours or overnight. Drop by rounded teaspoonful 2-inches apart on ungreased baking sheet. Flatten with a fork dipped in flour; sprinkle with sugar.

Bake at 350°F for 13 to 15 minutes or until lightly browned.

Makes about 4 dozen.