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Making Friday even sweeter with these Healthier Dark Chocolate Chunk Oatmeal Cookie Bars. These one-bowl homemade oatmeal cookie bars with dark chocolate chunks and a sprinkle of flaky sea salt are the perfect way to end the week. They’re super easy and made a touch healthier with a mix of whole grain oats, whole wheat flour, coconut or olive oil, and a reduced amount of sugar. But most importantly, everyone LOVES these oatmeal bars! Plus, they’re pretty difficult to mess up…they always turn out GREAT.

Going back to my childhood roots with these oatmeal cookie bars. For any of you that know anything about my mom, you know that when my brothers and I were growing up, she’d have dessert on the table before dinner was even a thought. Her staples were chocolate chip cookies, special K-bars, chocolate cake, and her famous oatmeal chocolate chip cookies that she’s been making ever since her friend Lora gave her the recipe (before I was even born).
Oh her cookies. My memories of them are so fond and perfect. We’d always eat them a little warm and gooey right after baking and always with a cold glass of milk. Very classic, right? To this day, these are some of my favorite memories. Baking in the kitchen with mom and zero brothers around.
Fun fact? My purpose in life as a kid was to figure out a way to get mom all to myself without any of my five brothers. It was tricky, but when I made it happen I loved every minute of our one-on-one time.

Anyway, when my mom wasn’t feeling like baking her round chocolate cookies, she’d make oatmeal cookie bars. Her recipe is EASY and it’s the BEST. You simply cannot beat a one large bowl, ten-minute prep, and pantry staple cookie bar.
Mom would make her oatmeal cookie bars once a week. And there were definitely many weeks she’d make them twice. When a recipe is as easy and as delicious as her bars, it becomes a staple in the kitchen. But here’s the truth. Over the years I’ve adapted her recipe, making small tweaks here and there to adjust them to be a little bit healthier and taste maybe even better?
Maybe…
It’s hard to beat an oatmeal cookie bar baked by my mom, but these healthier dark chocolate chunk oatmeal cookie bars come very, very close.

This recipe requires just one bowl and a spoon…no mixer. It’s completely no-fuss, and takes ten minutes to toss together. You can’t mess these bars up. They are practically foolproof.
In your mixing bowl combine all of the dry ingredients. Now, add all of the wet ingredients. Mix away until you have a crumbly dough. Stir in plenty fo dark chocolate chunks, then press the dough into a baking dish. Bake twenty minutes and sprinkle with flaky sea salt once you remove them from the oven.
Smell the wonderfulness? Do you see the melty chocolate?
I don’t love the word perfect, but these oatmeal cookies are pretty close to it.

Normally I’m all for butter, but with this cookie recipe there is no sub…oil is what works best, and is a bit healthier too. Over the years I’ve discovered that you can use melted coconut (which I prefer) or extra virgin olive oil (which is also delicious but adds a little flavor to the cookie).
To make these a heartier cookie, I replaced half of the white flour with whole wheat flour and reduced the sugar by half. And of course, was sure to stir in plenty of antioxidant-rich dark chocolate.
Oh, and you can’t forget a nice dusting of flaky sea salt. You don’t have to, but it sure is good…
One thing I do want to note is that these cookie bars are crumbly. It’s just the way they are, and it’s apart of what makes them delicious. So embrace the crumbly cookie bar. Promise you, it’s so good.

What I love about these cookies is that they’re so easy to make. They require no chilling and truly take just thirty minutes from start to finish. I almost always have these ingredients on hand. So when it’s Friday night and the urge for a delicious yet slightly healthier chocolatey cookie comes on? These cookies are always what I bake. Always.
They’re just perfectly crisp on the edges but soft and gooey in the middle. The best kind of cookie.
Bake these tonight, or sometime this weekend. Then make them again whenever you’re craving something sweet. Perfect for any time of the year bar, and such a great staple recipe. Hope you ENJOY!

Looking for other healthier desserts for the weekend? Some favorites…
Healthy…ish Homemade Samoas Cookies
Fudgy Avocado Brownies with Chocolate Fudge Frosting
Lastly, if you make these healthier dark chocolate chunk oatmeal cookie bars, be sure to leave a comment and/or give this recipe a rating! Above all, I love to hear from you guys and always do my best to respond to each and every comment. And of course, if you do make this recipe, don’t forget to tag me on Instagram! Looking through the photos of recipes you all have made is my favorite!
Nutritional information is only an estimate. The accuracy of the nutritional information for any recipe on this site is not guaranteed.

These are seriously my kind of healthy food!!! Could eat these every day!!!
We do!!
Thanks so much, Robyn!
I’m loving so many things about these! I much prefer bars over cookies because they’re just easier. Less scooping and rolling, just cut and eat. I also love the whole wheat and the coconut oil. yum!
We love cookie bars over here too!
Thanks Kelly!
You had me at “healthy chocolate chip cookie” =)
Haha! Thank you!
Great recipe, but I hate to tell you this…brown sugar is just as unhealthy as regular sugar. It’s not actually raw sugar. They add molasses back into it. Sugar by the Cane raw sugar is actually a healthier choice.
Hi Viola!
I actually know this, but I just prefer the taste of brown sugar. I am calling these healthier because I reduced the original amount of sugar by 75 percent (there was SO much sugar in the original recipe!), swapped in whole wheat flour, dark chocolate and coconut oil. I do realized they may not be the healthiest bar around, but they are an improved one! I will have to try cane raw sugar though, that sounds like a great swap!!
Thank you!!
Oh these are DEFINITELY going on my “must make immediately!” list. I’m elated that they have coconut oil in them! A healthy way to enjoy my sweets is always a win for me!
Thanks Mimi! Hope you love these!
Any kind of bar with dark chocolate in it is a win in my book.
Thanks Nicole!
I am definitely a dark chocolate girl–ALL THE WAY. I don’t know when that changed, because it didn’t used to be that way. Of course, I will never say no to chocolate–milk or dark. 🙂 These look fantastic. I can hardly stand the layer of melted chocolate!
Thank you so much, Courtney! We love any and all chocolate around here!
Can’t go wrong with great tasting healthy bars! Perfect for my sweet tooth 🙂
I agree! Thanks Laura!
Happy Friday! Get in my belly oatmeal cookie bars, YUM!
haha! Thanks Pamela!
Are you sure that these are idiot-proof?? 😉 I can cook, but I am not the best of bakers!!
Positive!! You’ll love these bars!!
Oh my gosh — I would totally eat these for breakfast, lunch and dinner. AHHMAZING.
We totally do!!
Thanks Meagan!
These look ridiculously good! I love how much chocolate is in them.
We have to have a lot of chocolate around here!
Thanks Tessa!
My heart skipped a beat when I saw “idiot proof” in the title. Easy baking recipe for the baking-challenged?? I’ll take it! My family will LOVE these bars! We’re all about dark chocolate. And did you say “doughy”?? SOLD down the river! Have a great weekend, lady!
Thanks Julia!! Hope you have a great weekend too!
I love one batter bowls so there is less stuff to clean up. These look amazing, Tieghan!
Oh, me too! Thanks Eva!
This is what I call serious lovin’! Wow, I could finish an entire batch off of these, myself. I love all the ingredients and as usual, your photos put the whole post over the top! Great job!!
Thank you so much, Dan!