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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!!
One of our family’s very favorite desserts! Chewy and delicious. It’s soooo good warm with vanilla ice cream.
We added peanut butter chips for the middle layer – YUM.
If you’re like me and make the dough and then remember that all your 9×13 pans are already in use, you can make this dough into regular cookies. Mix all the chocolate chips into the dough and bake tablespoon-sized dollops for 10 minutes. They turn out great!
My husband loves peanut butter. Is it possible to reduce the butter and add some peanut butter.
This recipe is the BEST!
I chopped up some dark chocolate my BF got me for Christmas we needed to use up. I also used a jelly roll so the bars weren’t too thick. I didn’t add the white sugar and they still ended up being SO good. I actually added some chopped walnuts in with the chocolate layer. So good.
So tasty and so easy 🙂
These are 5 star fantastic!
I cut the recipe exactly in half and baked them for 20 minutes. I also used Quick Cooking Oats – I find that most of the batters that I prepare that call for oats are easier to work with that way. But that’s just me.
This is definitely going to become a staple around here. Much better than regular old Blondies.
Whenever I make a new recipe or anything, I forget to read the directions, I just usually add everything and mix. They turned out great, but for me they crumbled up a bit. Wish they would be more moist and stay together more.
These are great, very moist and chewy. I added toasted pecans because I like nuts with my sweet treats! I will definitely make these again. If you are making for a group don’t worry these will be a hit!
I made them with 1/2 chocolate and 1/2 butterscotch chips. Yummy! I did struggle with spreading the dough in the pans, esp. the top layer! Hard to get it spread nicely. But everyone loved them!