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.
Follow me for more great recipes
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
Follow Me
I originally shared this recipe February 2016. Updated April 2018 and May 2022. Recipe adapted from All Recipes.
This post contains affiliate links.
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 were yummy. My husband loved it. I think next time I will swap 1 cup of chocolate chips for walnuts.
I was wondering, why cant we just mix all of the chocolate chips at the same time instead of the 2 step method? Also, would it be ok to add some chopped walnuts or pecans? Thank you sooo much for this recipe!!
You could do both of those. I like to have a defined layer of chocolate in the middle (that’s why I do the 2 steps)
I made these last week mixing 1 c. milk chocolate chips and 1 c. semisweet chocolate chips together in the dough (not layered) and they were still yummy! But the 2 different chips made a difference…want to try peanut butter chips the next time.
These bars were thick, chewy, chocolatey deliciousness! I made these for an annual picnic last weekend and they were a huge hit!
These bars were thick, chewy, chocolatey deliciousness! I made these for an annual picnic last weekend and they were a huge hit!
I substituted half the chocolate chips with peanut butter chips, it cut the sweetness and added a kind of almost salty sweety savory something taste that everyone LOVED.
I try A LOT of Pinterest recipes but this one my husband specifically said he’d want again and again…
Hi! I’m wanting to make these tonight and wondering if I can sub the regular flour for all-purpose gluten-free flour? Thanks!
Hi Heather, I have never baked with gluten-free flour so I’m honestly not sure, but I imagine it should be just fine. Id love to hear how they turn out!
I just made them with Gluten Free flour and they turned out great. I did add 1/4 extra baking powder because gluten free flour tends to be very flat. They turned out great.
Just put this in the oven, my preschoolers loved helping me and we can’t wait to try it! Thank you!
Just put this in the oven, my preschoolers loved helping me and we can’t wait to try it! Thank you!
These are delicious! I used only 1-1/2 cups of chips because that’s all I had, but they were still delicious!
Will try this using Splenda Brown sugar substitute and regular Splenda to cut down on carbs.
Thank you from our troops! I’m making this to send to my brother who is currently in the Army in Afghanistan. In a bar form it makes it easier to vacuum seal and when they get them 10 days later they are still fresh and yummy!
That is so wonderful!! Thanks for sharing Micheala–I hope he loves them 🙂
What kind of oatmeal did you use old fashion OR quick oats
Old fashioned
Ok can I doubles them to make more I love it I want make plenty
Love this recipe and it was so easy to make. Shared with friends and it was a hit!