Line cookie sheets with silicone mats or parchment paper.
Beat together the room temperature butter and the granulated and brown sugars.
Beat until creamy.
Add in the egg, vanilla, and molasses. Beat until combined.
Sprinkle the baking soda, ground cinnamon, and salt into the bowl.
Spoon and level the flour before adding to the bowl.*
Beat on low until combined.
Add the oats and beat until well combined.
Stir in the raisins.
Use a cookie scoop or roll 1.5 tablespoon of cookie dough into a ball.
Place 2 inches apart and bake for 10 minutes.
Once the 10 minutes is up, use the back of a wooden spoon to gently press down on the centers of the cookies.
Bake for an additional 3 minutes before removing from the oven.
Allow the cookies to cool for 5 minutes before moving them to a cooling rack to cool completely.
Store in an airtight container.
Notes
*To add the flour, stir the flour and use a spoon to add it to the measuring cup. Once the flour is to the right measurement, gently level the top of the measuring cup to remove any excess flour. *Soak the raisins in water or juice for 10 minutes before adding them to the cookie dough to change the texture and plump them up.