Oatmeal Raisin Cookie Bars

Preheat the oven to 350°F and prepare a 9×9-inch baking pan by coating it with baking spray and lining it with parchment paper.

In a bowl, combine flour, baking soda, cinnamon, and salt, and set aside.

In a separate bowl, beat together butter and brown sugar until light and fluffy, about 2–3 minutes, scraping the sides of the bowl as needed.

Add the eggs one at a time, beating well after each addition. Scrape the bowl as necessary, then stir in vanilla extract.

Gradually add the dry ingredients, mixing until well combined. Use a spatula to make sure there are no streaks of flour.

Gently fold in oats and raisins. The dough will be thick and sticky.