Add the eggs one at a time, mixing well after each addition. Stir in the vanilla extract.
Bake for 10-12 minutes or until the edges are golden brown.
Drop spoonfuls of the dough onto the prepared baking sheets, spacing them about 2 inches apart.
In a large bowl, beat together the butter, brown sugar, and granulated sugar until creamy.
In a separate bowl, combine the flour, baking soda, cinnamon, and salt. Gradually add to the wet mixture.
Preheat the oven to 350°F (180°C). Line two baking sheets with parchment paper.
Remove from the oven and let cool on the baking sheets for 5 minutes before transferring to a wire rack to cool completely.
Stir in the oats and raisins until fully combined.