2 c. butter
2 c. granulated sugar
2 c. powdered sugar
4 eggs
2 c. oil
2 tsp. vanilla
2 tsp. salt
2 tsp. baking soda
8 c. flour

I use butter Crisco for a light cookie.

Cream butter, sugars and eggs. Add oil and vanilla. Blend well. Slowly add flour, salt and soda. Drop onto ungreased cookie sheet. Flatten with glass dipped in sugar. Bake 12 minutes at 350 degrees. This is a double recipe but can easily be cut in half. These freeze very well after baking.