Preheat oven to 350 degrees F (175 degrees C).

Beat butter and sugars together in a large bowl with an electric mixer on medium speed until creamy. Add eggs and vanilla; beat well.

Add combined flour, baking soda, cinnamon and salt; mix well.

Add oats and raisins; mix well.

Drop dough by rounded tablespoonfuls onto ungreased cookie sheets.

Bake in the preheated oven until light golden brown, about 8 to 10 minutes.

Cool briefly on cookie sheets; remove to wire rack. Cool completely. Store tightly covered.