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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!!
I’ve. been looking for a recipe like this! This one looks PERFECT! Trying this today, the kids will LOVE it.
I followed the recipe as posted, but instead of mixing one cup of chocolate chips into the base , just added one half cup, BUT , when it was time to add the rest of the 1.5 cups of chocolate chips on top of the base, I did half chocolate chips,half sea salt caramel chips, and about half cup of chopped pecans.. so delicious!!!
I had the same problem some other reviewers mentioned. Soggy/undercooked in the middle and crispy on the edges. Used 9×13 glass pan at 350 for 30+ minutes. Flavor was good but won’t be making again.
I made these tonight and they are perfect! I didn’t want a huge batch so halved the recipe and used a 7 x 11 pan. Perfect at 25 minutes. Putting it in my recipe box right now because it is a keeper! Thanks!
I’m so happy you liked them! Thanks for commenting 🙂
These Oatmeal Chocolate Chip Cookie Bars are delicious, and easy to make.
The people I shared them with loved them. When I made them, all ingredients
worked out fine. Batter was thick but great. I put 1/2 the chips in and smoothed
all the batter into my pan, by accident. I didn’t read the recipe close enough.
I put the remaining chips on top and pushed them in with a spoon. They turned out perfect.
I will make these again and again. Thank you for the recipe,
Delicious, I have made these two times now–first time with just chocolate chips (with M&Ms on top_) and the second with a mixture of chocolate chips and peanut butter chips; it was so simple and everyone loved them!
Didn’t turn out too well for me. Is 1 cup of butter accurate? Maybe my measurement was wrong because they came out soft in the middle; put them back in another 10 minutes and they were still very soft and buttery (falling apart) The edge pieces were the best… May try them again another day though.
hah!
this exact same thing just happened to me… did u use DF butter? I used like a vegetable spread and they came out so buttery and gross had to pitch!
To much leavening –
This is essentially the same recipe i would use for making cookies with baking powder thrown in. All I taste is te soda and powder – it is too much –
These are going in the trash.
Not sure if I did something wrong but I had a heck of a time spreading the dough on both the bottom and the top. I’m sure they’ll taste good (in oven now) but I wonder if it would be easier to mix in all chocolate chips and put dough in all at once.
As a pregnant lady, I try to find recipes that taste good and are high in fiber (oatmeal). I didn’t want to make cookies and I am very happy that I found this recipe. I kind of crashed my way through this recipe, but it turned out great! First I added a small black banana from my kitchen and used only 2 medium eggs, but then realized that it might be too liquidy. I used 1 cup of white flour and 1/2 cup wheat flour to help with the liquidy problem. I ran out of old fashioned oats after 1 cup and I added 1 cup of quick oats. Lastly I used about half a bag of semi-sweet chocolate chips (6 oz) and added enough milk chocolate chips to hopefully get to a cup of chocolate chips (I don’t like a lot of chocolate in my chocolate chip desserts). After 25 minutes it was the perfect color, but was nowhere near finished (I also bake my items on the “bottom” rack because the middle of my oven bakes the top too fast). I put it on the middle rack for an additional 5 minutes and when it came out it looked like I almost burned it, but it was perfect. (Because I added wheat flour and my eggs have orange yolks, it made the bars a lot darker.)