In a medium bowl, whisk together flour, oats, salt, baking soda and cinnamon. In another large bowl, using either a hand or stand mixer, beat softened butter with both sugars until fluffy.
Add eggs and vanilla extract, beat until smooth. In three separate additions, add in flour mixture beating after each addition until fully combined. Fold in raisins, cover and refrigerate dough for at least one hour.
Preheat oven to 350 F. Using a cookie scoop, place dough onto ungreased baking sheets. Bake for 10-12 minutes.
