I had bought the bag of Butterfinger candy pieces on clearance not sure what I was going to do with them. I decided to add them to my favorite oatmeal recipe one day. My family went nuts over them. The combination of flavors goes wonderfully and quickly became my family's favorite cookie.
Cream together butter and sugars. Beat in eggs one at a time until light and fluffy.
Combine flour, baking soda, salt and cinnamon in another bowl. Slowly add to butter mixture. Add in oats. Stir until combined.
Dump in bag of Butterfinger candy pieces. If you can't find the bag of crushed Butter finger candies in your baking section, you can take 4 full sized candy bars and crush them in a ziploc bag. Crush into small pieces, but not too finely. Mix to combine
Allow dough to chill in the fridge at least an hour.
Preheat oven to 350 degrees. Spray cookie sheets with non-stick spray or line with parchment paper. Scoop by heaping tablespoons onto trays. Leave some space because they spread.
Bake 8 to 10 minutes. Remove and let sit for 5 minutes to set. Remove from tray and allow to cool fully. Enjoy!