In a large bowl, cream together the softened butter, brown sugar and white sugar.
Then stir in the egg, milk and vanilla extract until combined.
In a medium bowl, whisk together the flour, baking soda, salt and cinnamon.
Then stir these dry ingredients as well as the oats in with the wet ingredients until a soft dough forms.
Last, stir in the raisins.
Spoon the batter onto a baking sheet lined with parchment paper or a baking mat.
Bake at 350°F (177°C) for 10-11 minutes. The centers of the cookies will still look a little undercooked, but the edges will be browned.
Allow the cookies to cool on the baking sheet for a few minutes before transferring to a cooling rack.
Notes
You can use golden raisins for a slightly different flavor and color. Or swap the raisins for a different dried fruit like dried cranberries or blueberries.If you are a raisin-hater, you can swap them for chocolate chips. These oatmeal cookies are great containers for lots of things.Soak the raisins in rum overnight, and then drain well before adding to the batter. Now you’ve made oatmeal rum raisin cookies. 🙂For something even more seasonal, swap the cinnamon with pumpkin pie spice.