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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!!
Review from my 8yo: It looks good and it tastes good and it’s the best recipe I’ve ever had. 🙂
Reduced sugar- 1/3 each of brown and white sugars. Added 1/3 cup of peanut butter and a cup of walnuts. I like things a little salty, so I threw in a pinch of salt. Came out so well- and plenty sweet enough!
Fabulous recipe just as it is. After spreading the first layer with half all at once, I added the chocolate chips on top followed by big tablespoon dollops around and it was so easy to spread that way. Great recipe with a scoop of ice cream on top. Yummy!!
Great recipe, but felt like it wasn’t enough dough for 9 x 13 – I ended up using a smaller pan to do make these in. Would double the recipe next time.
Incredibly sticky batter – took the better part of 25 minutes to try and spread and I nearly felt like a shower after – maybe smaller pan would be better- a giant mess of goo is currently in my oven…doubtful I’ll end up with bars… Even more doubtful is if I will ever make this recipe again
Oh my Colleen, you had best practice your skills a bit more….
Followed the recipe to a T and for some reason they ended up tasting a little salty. I think the salty taste was so prominent not because there was too much salt, but because the bars were severely lacking in flavor. The texture of the bars was spot on though.
Thank you for this awesome recipe! I eat too many sweets. Based on the great reviews, I felt comfortable modifying it a bit. It came out AMAZING. I am sure it’s incredible as is. For anyone who needs something a bit healthier, I’m posting my modifications. Subbed 1/2 cup butter and 4 ounces unsweetened applesauce for the 1 cup of butter. Subbed 1/2 cup brown sugar and 1/2 cup coconut palm sugar for the 1 cup brown sugar. Subbed 1/4 cup Trivia for 1/2 cup granulated sugar. Subbed 1 1/2 cup whole wheat flour for the 1 1/2 cups all purpose flour. Baked in a 7 x 11″ pan. THESE ARE AMAZING, thank you so much for posting! Can’t wait to try your skinny banana bread!
Was it still sweet after the adjustments?
Yes it was delicious. I heat them up on low power to get that fresh out of the oven goo after the first day.
I am thinking of using quinoa flour instead of wheat flour, more protein!
Best recipe I have tried! I use chopped dried figs in place of chocolate chips. They taste like my grandmas lace cookies, but so much easier to make!! Thank you! 😁
Great recipe, but probably don’t need the white sugar. I cut the recipe in half and no white sugar, delicious!
Delicious! A keeper!