Preheat the oven to 375 degrees.
In a large bowl, mix together the flour, baking soda, cinnamon, and oats together. Set that aside.
In the bowl of a stand mixer fitted with the paddle attachment, add the butter and sugars. Mix for 2 minutes until light and fluffy.
Add the eggs, one at a time, beating in between each addition.
Add the vanilla extract and beat again. Scrape down the sides of the bowl and beat again.
Slowly, add the flour and oat mixture to the bowl of the stand mixer. Mix until all the ingredients are combined.
Add the craisins to the stand mixer and mix one more time.
With an ice cream scoop, or a spoon, scoop the cookies out and place them on a silicone or parchment lined baking sheet. Flatten the cookies if you prefer a thinner cookie.
Place the baking sheet in the oven for 10-12 minutes or until the cookies are lightly browned and cooked through.
Place the baked cookies on a wire rack and allow them to cool before serving.