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.

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Recipe

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
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I originally shared this recipe February 2016. Updated April 2018, May 2022 and September 2025.
Recipe adapted from All Recipes.
This post contains affiliate links.

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!!
May I add pecans or walnuts and will it change any other ingredient amount?
You can add 1/2 cup to 1 cup of pecans or walnuts.
I wanted cookies but not all the work of cookies so I searched for a bar recipe. Found this one and it is perfect! Chewy, crunchy, yummy! Followed the recipe exactly and will definitely make again.
Could this recipe be used for cookies instead of just the bars? Also, I have made these a couple and they are delicious, however, they bake and rise then as they cool, they fall.
Ingredients on hand, easy to make and delicious!!
Personal preference only, I omitted 1/2 c of white sugar and only added 1 cup of chocolate chips cause I love a good cookie base, still delicious 😋
So delicious! A perfect dessert that tastes just like a cookie but so much easier to make. I did half the amount of choc chips and would recommend the same. Still very chocolatey!
These are wonderful! If possible, I would have given them a 6!
I have made these twice. So delicious. Highly recommend.
Has anyone tried these with half the fat, 1/2 C. butter, and half C. Applesauce?
I’d like to know this too!
These are phenomenal! I am picky about chocolate chip bars- I like them to be chewy and not crunchy. These turned out perfect and are so delicious. Saving as a favorite recipe to make again.
Could you use raisins instead of chocolate chips?
Yes that would be delicious, enjoy!