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Our favorite Oatmeal Chocolate Chip Bars are thick, chewy, and so easy to make! They're perfect for a crowd and are easy to transport in a 9×13 pan.

Oatmeal Cookie Bars Mean Business!
I don't know anyone who has tried these Oatmeal Chocolate Chip Cookie Bars and not immediately fell in love. They're so easy to make and I love the chewy texture from the oats. We don't skimp on the chocolate either.
Make sure to try my other cookie bar recipes, like Sugar Cookie Bars, Peanut Butter Bars, Snickerdoodle Bars, Butterscotch Blondies, and S'mores Bars.
How to make Oatmeal Chocolate Chip Cookie Bars:
Make Cookie Dough: With a hand mixer or stand mixer, beat together the butter, brown sugar, and white sugar until smooth and light. Mix in eggs, one at a time, then add vanilla. In a separate bowl, combine the salt, baking soda, baking powder, flour, rolled oats, and 1 cup chocolate chips. Pour the dry ingredients into the wet ingredients and stir until combined. Add remaining chocolate chips.
Bake: Press cookie dough into greased pan with parchment paper then bake at 350°F (180°C) for 25-30 minutes, or until golden brown. Let it cool completely before cutting and serving with a cut and serve turner.


Oatmeal Chocolate Chip Cookie Bars
Equipment
- Stand Mixer , optional
Ingredients
- 1 cup butter, (227g), room temperature
- 1 cup light brown sugar, (220g), packed
- 1/2 cup granulated sugar, (100g)
- 2 large eggs
- 2 teaspoons vanilla extract
- 1/2 teaspoon salt
- 1 teaspoon baking soda
- 1 teaspoon baking powder
- 1 1/2 cups all-purpose flour, (188g)
- 2 cups old-fashioned rolled oats, (170g)
- 2 cups chocolate chips, (340g) semi-sweet, milk chocolate, or a little of both!
Instructions
- Preheat oven to 350°F (180°C). Lightly grease a 9 x 13 inch pan with cooking spray or line with parchment paper.
- Beat Butter and Sugar: In a large mixing bowl beat together the butter, brown sugar, and granulated sugar until smooth and light.1 cup butter, 1 cup light brown sugar, ½ cup granulated sugar
- Add the eggs one at a time, mixing after each addition. Add the vanilla.2 large eggs, 2 teaspoons vanilla extract
- Mix Dry Ingredients: In a separate bowl combine the dry ingredients: salt, baking soda, baking powder, flour and rolled oats.½ teaspoon salt, 1 teaspoon baking soda, 1 teaspoon baking powder, 1 ½ cups all-purpose flour, 2 cups old-fashioned rolled oats
- Combine: Add dry ingredients to the creamed mixture and stir until combined. Stir in chocolate chips.2 cups chocolate chips
- Bake: Press into prepared pan and bake for 25 to 30 minutes or until golden brown. Allow to cool completely before cutting.
Notes
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
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I originally shared this recipe February 2016. Updated April 2018, May 2022 and September 2025.
Recipe adapted from All Recipes.

Oatmeal Cookie Bars Mean Business!


These are some of my favorite bars of all time. And so easy to make. I bake mine for 27 minutes. Definitely be sure to let them cool if you plan on taking them anywhere or else they won’t be set, but when it’s just me I love digging in right away.
I bet you do
One of my go to recipes for gatherings. The pan almost always comes home empty. Thank you for sharing!!
Can i use quick oats instead?
1. What was the answer to: can you use Quick Oatmeal for these?
2. Could you use raisins instead of chocolate chips? If so, do you have to soak them? I don’t do much baking with them, but my husband loves them.
Hi Judy, you could use quick oats, but the texture will be slightly different. Yes, you can use raisins, and I would soak them briefly in hot water to allow them to “plump” and rehydrate, before adding them.
I made 2 batches today, one with butter, one with butter alternative, as there is food allergies at our family event. Both turned out fantastic. I started watching them at the 20 minute mark. The tops were getting golden and the centre set at the 28 minute mark. They will be a tasty edition to our festivities, just in time for chocolate chip cookie day.
Yummy!
These cookies were wonderfully good! I did add cinnamon and roasted walnuts next time I will also add nutmeg. Melt in your mouth,chocolately chewy oatmeal. I will definitely make them again! Loved cooking them all at once. Saves alot of time and energy. Gave me a great idea! Making bar cookies for all my holiday sharing,this year.
Really wanted to give this a higher rating as the flavor was nice, but the edges were done-to-overdone at 25 min, while the center was still raw. (My oven temp is accurate.) Would recommend a one hour rest period for the dough in the fridge to help the oats absorbs some liquid before baking. Could also take the temperature down to 325 midway through the bake.
A similar thing happened to me. I covered with foil and finished at 300 F.
I doubled the recipe and used a quarter sized baking sheet…this made them better for us gals with our coffee and/or tea…to heck the “big boys and their toys”!🤭💕🤫
Fan favorite. I tóok a double batch to work and they didn’t last past coffee break time
These are Deeelicious!
Now a favorite!
Could I half the butter and replace the other half with peanut butter?
Sure, that should be fine.
This recipe looks so good, any tips for adding blueberries?