In a large bowl, cream butter and brown sugar together with a mixer. Beat in eggs and vanilla.
In another bowl, stir together flour, baking soda, baking powder and salt. Add to sugar mixture and stir until moistened.
Stir in oats, coconut and butterscotch chips.
Drop by tablespoonful onto an ungreased cookie sheet. Flatten slightly with a floured fork.
Bake for 10 minutes.
Notes
I used large flake oats in this recipe because it's what I had in my pantry.Store the cookies in a covered jar to keep the soft or an open jar to keep the crisp.