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!!
These are my family’s new favorite cookies, replacing my family’s 30 year favorite! They are so good; perfectly ooey gooey. I always have to bake them another 5-10 minutes, but it’s definitely worth the wait!
What would be considered a serving size for this recipe? I have a grandson who is a diabetic and hast to monitor his insulin. I noticed that one serving is 34 carbohydrates but I don’t see where it tells me what the serving size is
It says 24 servings at the top of the recipe (after you hit the jump to recipe button).
Made this today. First off, it really needs to bake for closer to 40-45 minutes (or more). This makes a lot of very stiff batter. I thought I could get away with an 8×11 pan, and the bars are way too thick. Go with the 9×13 pan. Lastly, I think if I make this again, I’ll cut back on the chocolate chips. I like a bit more of the oatmeal bar instead of so much chocolate. (Yeah, I know, as if you can have too much chocolate.)
Made exact to recipe and center was not cooked even when baked longer.
Not recommend
Same thing happened to me. Very frustrating.
These were so nice but for some reason they tasted like popcorn to me
These were so easy. I used a cup of milk chocolate chips and a cup of butterscotch chips and a little flakey sea salt on top at the end. YUMMY.
Not sure why but mine came out super liquidy underneath but pretty dark on top:(
I have been baking for over 70 years, my bar cookies came out very soft, and never did set properly in the middle. IF, I ever try these again I would add a touch more flour, Yes, I used real butter.
You used a Pyrex dish, didnt you?
Your years of baking should tell you that Pyrex takes 25% longer to heat up so you have to bake for 25% longer…..
Mine too. Made it exact to recipe and they never cooked through.
These BARS! So easy to whip up with ingredients that are always in the cupboard. Everyone wants the recipe and there are never any leftover. Great recipe!
These were great
Be careful not to overtake. A very rich nummy bar. Very easy to make and had all the ingredients.
Made this today, however didn’t have chocolate chips so I substituted for raisins, apple and coconut ☺️ it’s very nice – very sweet, I would add less sugar next time.