Heat oven to 350 degrees F. Line baking sheets with parchment paper.
In large bowl of electric mixer, beat together butter and sugars until fluffy. Beat in molasses, eggs, vanilla, baking soda, cinnamon, and salt. (mixture may look curdled)
On low speed beat in flour. Stir in oats and raisins.
Drop by tablespoons 1-1/2" apart on prepared baking sheets. Bake for 8-9 minutes or until the tops look dry. Cool on baking sheet for 1 minute before removing to wire rack to cool.
Store cookies at room temperature in an airtight container for up to 5 days or freeze up to 3 months.
Recipe by The Culinary Cellar at https://theculinarycellar.com/oatmeal-raisin-cookies/