Meals With Maria

The Finest Oatmeal Cookie Bars

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I love cookies, but sometimes I don’t have time to scoop out all the individual cookies. So I realized, similar to sheet pan pancakes, making cookie bars is much much easier. You make all the dough, cook it, then slice it! It doesn’t help that these Oatmeal Cookie Bars are absolutely delicious and helped me to use up that huge container of old fashioned oats I bough on sale.

Oatmeal Cookie bars on a plate

As always, please share your own recommendations on how to make this dish healthier, more kid friendly, swap ideas, and budget shopping tips in the comments!

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oatmeal cookie bars on a plate

Oatmeal Cookie Bars

2 from 1 review

  • Author: Maria
  • Total Time: 40 minutes
  • Yield: 12 bars 1x
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Description

So much easier than cookies, these bars are so sweet and delicious. Even better, you can add any of your favorite mix-ins like chocolate chips or walnuts.

Ingredients

Scale
  • 1 cup room temperature butter
  • 1 cup brown sugar
  • 1/2 sugar
  • 2 eggs
  • 2 teaspoons vanilla extract
  • 1/2 teaspoon salt
  • 1 teaspoon baking powder
  • 1 teaspoon baking soda
  • 1 1/2 cups flour
  • 2 cups of old fashioned oats
  • up to 2 cups of mix-ins like chocolate chips, walnuts, or craisins.

Instructions

  1. Preheat the oven to 350 degrees.
  2. Mix butter, brown sugar, and sugar in an electric mixer with he paddle attachment.
  3. Once well mixed, add the eggs and vanilla.
  4. Separately mix the salt, baking powder, baking soda, oats, and flour.
  5. Slowly add the dry ingredients to the mixer until well incorporated.
  6. If you want to add anything additional, add it to the mixer and mix until evenly incorporated.
  7. Grease a 9×9 pan.
  8. Add the batter to the pan and spread evenly.
  9. Bake for 25 minutes.
  10. Allow to cool and slice into bars.
  • Prep Time: 15
  • Cook Time: 25

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Reader Interactions

Comments

  1. Angela

    I’m wondering if it should be in a 9X13 pan instead? I made the recipe, as noted in a 9X9 and it was still liquid at 25 minutes. It then burnt when I tried to cook it longer. It smelled amazing, just didn’t work for me. Thanks.



    • contactmealswithmaria

      Hi Angela, I’m so sorry these didn’t work for you! 9×9 is correct. I know that oven temps often vary and you might find that if you take them out when they still seem a little gooey, they will continue to cook in the pan until they are cool and sliced. I’ll make sure to note this in the recipe going forward. I appreciate you trying my recipe though! Hope you might give it another shot!