Preheat the oven to 350 degrees F. Soften the butter in the microwave (not completly melted). Combine the softened butter with the brown and gradulated sugar. Mix until well combined.
Add eggs and vanilla extract to your mixer and combine until fully incorporated
In a separate bowl, combine your dry ingredients. Flour, oats, cinnamon, salt, baking soda. Mix until fully combined.
With your mixer on a slow speed, slowly add in the dried ingredients to your mix until the dough starts to form.
Add the raisins to your dough.
On a baking sheet with parchment paper or a silicone mat, scoop your cookies using a large cookie scooper (I used a muffin scooper). Drop them on the pan about 2 inches apart.
Bake for about 11-13 minutes. The center of the cookie should be slightly underbaked but not too gooey. Let the cookies cool on the cookie sheet for about 5-10 minutes before you move them to a wire rack to cool completly.
Stir in an airtight container.
Notes
Nutritional information is an estimate and will vary based on ingredients used.