1 c. butter
1 c. vegetable oil
2 eggs
1 TBS. vanilla
1 c. powdered sugar
1 c. white sugar
4 ½ c. white flour
1 tsp. cream of tartar
1 tsp. baking powder

Cream butter, add vegetable oil, eggs and vanilla. Beat with a mixer until very fluffy. Add the remaining ingredients and mix well. Chill dough. Roll into 1 inch balls. Press with a glass that has been dipped in sugar each time you press the cookie (I have used sprinkles of all kinds for a different look and taste). Bake on an ungreased cookie sheet at 375 degrees for 8–10 minutes. This makes a large batch of cookies. They are so good. They are like shortbread.