- 1 cup butter, softened
- 1 cup canola or olive oil
- 1 cup sugar
- 1 cup sifted powdered sugar
- 2 eggs
- 4 cups all purpose flour
- 1 tsp baking soda
- 1 tsp cream of tartar
- 1 tsp salt
- 1 tsp vanilla extract
- 1 (12) oz package semi-sweet or milk chocolate chips additional sugar

Combine first 5 ingredients in a large bowl. Beat until smooth. Combine flour, soda, cream of tartar and salt; add to butter mixture. Beat until smooth. Stir in vanilla and chocolate chips. Shape mixture into 1" balls - roll in sugar. Place 2" apart on an ungreased cookie sheet. Bake at 375 degrees for 10-12 minutes. Cool on wire racks.