Beat butter, shortening, and sugarsin a large bowl until light and fluffy. Beat in the egg and vanilla.
In a separate bowl, combine the flours, salt and baking soda. Slowly pour the dry ingredients into the wet ingredients, mixing until fully incorporated.
Fold in the coconut and the butterscotch chips.
Drop by rounded tablespoonfuls onto lightly sprayed baking sheets
Bake for around 10-12 minutes, or until lightly browned. Let cool on wire racks.