Flourless Peanut Butter Oatmeal Bars with Chocolate Chips want you to embrace The Blob Phase.

Easy Peanut Butter Oatmeal Bars with Chocolate Chips. Gluten Free!

Are you acquainted with The Blob Phase? It’s the moment right after you’ve realized that you wasted no fewer than five hours watching back-to-back Friends reruns and eating Cheez-Its, but before you’ve mustered the energy to scoot the empty box off of your abdomen.

When The Blob Phase hits, the only thing that’s less appealing than spending one additional second covered in cracker crumbs is the thought of getting up to do anything else. Thank goodness for Instagram. Blob Phase, recommence.

Flourless Peanut Butter Oatmeal Bars with Chocolate. Soft, chewy, and dangerously easy to make! (gluten free)

Peanut Butter Oatmeal Bars with Chocolate Chips. Gluten Free!

About the Best Chocolate Peanut Butter Oatmeal Bars

These ooey gooey peanut butter oatmeal bars were designed for The Blob Phase. In fact, they beg you to embrace it. An ultimate lazy dessert—only one bowl and limited measuring is required—these soft and chewy bars are at their best when at their blobbiest.

I suggest you make two: one to bake into peanut butter oatmeal bars and the other to devour immediately. I don’t consider myself a big cookie dough eater (I usually prefer the final baked version), but I couldn’t keep away from the mixing bowl. I am still stunned that a flourless, butter-free cookie dough can taste this incredible.

Flourless Peanut Butter Oatmeal Bars with Chocolate Chips. Easy and gluten free

Yes, you read that properly—butter free. In addition to being flourless, these miraculous bars contain no butter and still taste amazing, a feat made possible by our good friend, peanut butter. A super generous quantity (shall I call it a blob?) of creamy PB provides all of the moisture these bars need to be perfectly soft and chewy, without the addition of butter. Old fashioned oats add a little texture, and a handful of chocolate chips keeps things sweet and right.

Full disclosure: we are on our third batch of oatmeal bars in 10 days. When a dessert is this easy, this tasty, and (compared to other blondie bar recipes) this much better for us, it’s a little hard to control the urge not to bake just one more pan.

Easiest Peanut Butter Oatmeal Bars with Chocolate Chips

Peanut Butter Oatmeal Bars Storage Tips

  • To Store. Leftover bars can be stored in an airtight storage container for up to 4 days.
  • To Freeze. Place oatmeal bars in an airtight freezer-safe storage container in the freezer for up to 3 months. Thaw and enjoy as desired.

More Bars to Love

Flourless Peanut Butter Oatmeal Bars with Chocolate Chips

It’s the weekend. Embrace the blob with peanut butter oatmeal bars!

Easy Peanut Butter Oatmeal Bars with Chocolate Chips. Gluten Free!

Flourless Peanut Butter Oatmeal Bars with Chocolate Chips

4.56 from 9 votes
An easy, one-bowl recipe for peanut butter oatmeal bars with chocolate chips. Soft, chewy and gluten free!

Prep: 10 mins
Cook: 22 mins
Total: 32 mins

Servings: 1 8x8-inch pan (16 bars)



  • Place rack in the center of your oven and preheat oven to 350°F. Line an 8x8-inch baking dish with parchment paper and lightly coat with cooking spray. Set aside.
  • In a large mixing bowl, beat together the peanut butter, brown sugar, baking soda, and salt on medium speed until well combined.
  • Add the egg and vanilla, then mix on medium low, just until incorporated. By hand, stir in the chocolate chips and oats.
  • Press the dough into the prepared baking pan. Bake for 22 minutes, until golden and the top is set. Let cool completely in the pan. Remove, slice and serve.


An easy, one-bowl recipe for peanut butter oatmeal bars with chocolate chips. Soft, chewy and gluten free!

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Erin Clarke

Hi, I'm Erin Clarke, and I'm fearlessly dedicated to making healthy food that's affordable, easy-to-make, and best of all DELISH. I'm the author and recipe developer here at wellplated.com and of The Well Plated Cookbook. I adore both sweets and veggies, and I am on a mission to save you time and dishes. WELCOME!

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  1. Unfortunately, my batch turned out burned, dry, and crumbly. I use an oven thermometer all the time, so I know that the temperature of the oven was not the problem, nor was the metal pan I used. Major bummer, especially considering the wasted ingredients.2 stars

    1. Hi Mary, I’m sorry to hear you didn’t enjoy the recipe. It’s hard to know what may have happened without being in the kitchen with you, but I know it’s disappointing to try a new recipe and not have it come out, so I truly wish you would have enjoyed these!

  2. Thank you so much to share your recipe, i love peanut butter oatmeal bars,

    i have make this for follow your recipe.4 stars

  3. I made these two days ago, and they are super yummy. I used Kirklan natural peanut butter from Costco and an 8×8 glass Pyrex dish for baking. I baked them for 22 mins. I did not line the pan, just used a little cooking spray. They taste like chocolate chip peanut butter cookies. Thank you for the recipe!5 stars

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