Preheat oven to 350 degrees
In a large bowl or stand mixer, mix together butter, brown sugar and white sugar. Add eggs and vanilla and mix until well combined and smooth
In a separate bowl mix together flour, baking soda, salt and cinnamon. Add dry mixture slowly to butter sugar mixture and mix blend well.
Mix in oatmeal until well combined.
Stir in butterscotch chips until mixed well
Form dough into 1 inch balls and place on a lightly greased cookie sheet.
Bake for apprx 10-12 minutes until lighlty browning on the edges. Remove from oven and allow to cool on cookie sheet for apprx 2-3 minutes
Move to a cooling rack and allw to cool all the way.
Enjoy!