Preheat the oven to 350 degrees F (175 degrees C).
In a large bowl, cream together the butter, peanut butter and sugars until smooth.
Beat in the eggs one at a time, then stir in the vanilla.
In a separate bowl, combine the oats, baking soda, baking powder and salt; stir into the creamed mixture.
Fold in the chopped Butterfingers.
Drop by heaping teaspoonfuls onto ungreased cookie sheets.
Bake for 8 to 10 minutes in the preheated oven. Allow cookies to cool on baking sheet for 5 minutes before transferring to a wire rack to cool completely.
Interesting Facts
Oatmeal is a great source of dietary fiber.
Adding peanut butter to your cookie recipe adds protein and healthy fats.
Butterfinger candy bars are named after the original creator who wanted the candy to be “finger-like”.
The first Butterfinger candy bar was created in 1923.