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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.
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!!
Made these last night for my class.
O M G. Amazing. I added toasted walnuts to the filling. Used 75% of the amount of sugar in the recipe, but increased chocolate filling by 1/4 cup for contrast. Also – I used whole wheat pastry flour, so you know, they would be healthy. 🙂 Put parchement paper under it all for easy lift-off. They were perfect.
I will definitely make again.
Incredibly delicious. I have to make this soon!
Just brought these to a party and everyone loved them! Thanks for making me the star tonight!!
We’ve made these several times and they are so good! The only thing different from the recipe is we add nuts because we just love them! And I must add (for the person who doesn’t think this is enough batter for 9 x 13) it makes a perfect bar, perfect thickness.
Thanks!
OMG! Just made these, and I must say that they’re a keeper! Super decadent and easy to make. Thank you for this recipe ??
I made these yesterday. This recipe is definitely a keeper. We loved them.
I have a recipe called cowboy cookies that everyone loves. Your recipe with one tweak should be the bar version, thank you!
(Cowboy cookies are chocolate chip cookies with oatmeal and rice crispies. I’m thinkin to reduce the oatmeal to one cup and use a cup of rice crispies to replace. BTW, cowboy cookies are AMAZING, and you can call them breakfast! LOL)
We love cowboy cookies! We call them “Ranger Cookies” but they’re the same 🙂 https://tastesbetterfromscratch.com/ranger-cookies/
I have been baking for a long time
there is not not nearly enough batter for a 9×13 pan maybe 9×9. Tasty though.
Delicious! These are our new family favorite!!
Just made these *exactly* as written (baked 27 minutes), and they were everything a bar cookie should be. Dense, chewy and decadent in the best possible way. Sent them to work with my husband, and they got loads of love. Thanks!