Thick and chewy Oatmeal Cookie Bars are a great treat for a crowd, potlucks and parties. They have the flavor you love from a great oatmeal chocolate chip cookie, baked into easy and delicious bars!
Love brownies and cookie bar recipes? Try my Blondies, Snickerdoodle Bars, or Mississippi Mud Brownies!
Weekends are my weakness when it comes to sweets. I usually go for cookies or bars of some sort because I can always count on having the ingredients on hand.
These Oatmeal Chocolate Chip Cookie Bars are a regular, sweet-tooth-satisfying weekend treat at our house!. Chewy, chocolate and oat goodness in every single bite!
How to make Oatmeal Chocolate Chip Cookie Bars:
Beat butter and sugars: In a large mixing bowl beat together the butter, brown sugar, and white sugar until smooth and light.
Add eggs: one at a time, mixing after each addition. Add the vanilla.
Mix dry ingredients: In a separate bowl combine the dry ingredients: salt, baking soda, baking powder, flour, rolled oats, and 1 cup chocolate chips.
Combine: Add dry ingredients to the butter mixture and stir until combined. Add chocolate chips.
Press into greased pan.
Bake for 25 to 30 minutes or until golden brown. Allow to cool completely before cutting.
Storing and Freezing Instructions:
Storing instructions: Store covered at room temperature for 5 days or store in the fridge for 7-10 days.
Freezing Instructions: For best results, allow pan to cool completely. If you used parchment under the bars, lift the cooled bars out of the pan. Wrap the whole bar brick in plastic wrap and then aluminum foil. Freeze for up to one month. Thaw completely in the fridge before cutting into bars.
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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 and May 2022. Recipe adapted from All Recipes.
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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!!
Just tried this last night and it is delicious! Perfectly chewy and crispy. I’ll definitely be saving this one.
Just tried this last night and it is delicious! Perfectly chewy and crispy. I’ll definitely be saving this one.
Made the recipe for the first time. It is delicious. I will definitely make it again.
Hands down the best cookie I’ve ever made, simple, fool proof and delicious! I make them all the time for neighbors, church, etc!!
These are seriously good bars! I’ve been trying to recreate a peanut butter oatmeal bar for a long time, and on a whim added 1 cup of peanut butter to the recipe (just add it after you whip the butter and sugar). It takes the bars to another level! In my oven (convection/gas), it only needed to bake for 22 minutes.
Just made this and love it! Freezing half so I can warm it up later and have with a scoop of ice cream!
I made some alterations, changed butter for margarine, really butter is too expensive these days, but watch the time as Marg burns faster, I have a convection oven and it took only 23 min.
I also used only one cup of choc chips, two cups was way too much for me.
I substituted the white sugar for monk fruit sugar to cut the actual sugar content but still kept the sweet taste.
I added 1/4 cup of sliced almonds….game changer!
Ty for this recipe!
I’m sure these bars will be delicious.
I added coconut, pecans and 1/3 cup buttermilk.
Can’t wait for them to get done baking!!!
Absolutely delicious. Best oatmeal bars ever!!!! This is a keeper
What a terrific recipe !! The addition of baking powder is why you don’t need as many oats. I used all quick oats and they are perfect ! Thank you for writing this recipe !!
This is my go to recipe for the pay few years! Just wondering if you can make the dough ahead of time and freeze it and bake later?
Yes that will work great!
Turned out delicious. I even added walnuts