1/4 cup butter, softened
2 cups white sugar
1 teaspoon vanilla extract
1 cup all-purpose flour
1 teaspoon baking soda
1/4 teaspoon salt
1 egg, lightly beaten
1 teaspoon vegetable oil
1 teaspoon vanilla extract
1 1/2 cups rolled oats
Preheat the oven to 350 degrees F (175 degrees C).
In a large bowl, cream together the butter, sugar, and vanilla until smooth. Beat in the flour, baking soda, and salt. Mix in the egg and oil, then mix in the vanilla and oats. Drop by rounded spoonfuls onto ungreased cookie sheets.
Bake for 8 to 10 minutes in the preheated oven, or until slightly brown. Allow cookies to cool on the baking sheet. Wrap in plastic wrap and store in refrigerator.