Oatmeal Peanut Butter Cookie Bars

4.51 from 61 votes
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These Oatmeal Peanut Butter Cookie Bars are about to change your life. They’re gooey on the inside, made with wholesome ingredients, and kid-friendly! This oatmeal cookie bars recipe uses all-natural sugar (hey, maple syrup!), white whole wheat flour, rolled oats, and all-natural peanut butter to keep these peanut butter oatmeal bars healthy and better-for-you! Oatmeal Peanut Butter Cookie Bars It’s Friday and you deserve a COOKIE BAR. But, these aren’t you average peanut butter cookie bars… They’re Peanut Butter Oatmeal Bars. You guys died over this sneak peek on Instagram stories, so we rejiggered our content calendar to get these up ASAP. We also made them two more times to make sure they’re perfect…and, well, they are! These peanut butter oatmeal bars are a spin-off of our Grain-Free Chocolate Chip Cookie Bars, but we added in some rolled oats and white whole wheat flour for more of a traditional cookie bar texture. This recipe is gooey, satisfying, and just the best. They’re not too sweet and you don’t have to worry about refined sugars because these peanut butter cookie bars are made with maple syrup and you can use vegan chocolate chips to keep things 100% dairy free. Here’s what else you need:

Let’s talk all-natural peanut butter for a second. We get this question all the time, what are your favorite all-natural peanut butters to bake with? What I like to look for in all-natural peanut butter is: 1. no added sugar and 2. the consistency. You want to make sure that your all-natural peanut butter is drippy and smooth. If the oil is separated from the nut butter, no fear, give it a nice stir and you should be good to go. Here are some of my favorite brands to use when it comes to all-natural peanut butter.

Best All-Natural Peanut Butter Brands

  • Smuckers (ALL-TIME FAV)
  • Whole Foods
  • Fresh Thyme
  • Costco
  • Trader Joe’s
As you can see I’m just a littttttle bit passionate about peanut butter. Sry not sry. Cookie bars Lastly, before I share the recipe for these oatmeal peanut butter chocolate chip bars, I wanted to talk about ingredient swaps. You guys are the swap queens, so I’m hoping to answer all of those questions here!
  • White whole wheat flour –> I recommend swapping with either all-purpose, whole wheat flour, or a gluten-free flour blend. Swap recommendation is 1:1. Note: Do not swap 1:1 for a nut-based flour such as almond flour, coconut flour, etc.
  • Peanut butter –> Good news! Any kind of nut butter works for this recipe! My favorite other than peanut butter is cashew butter! Swap recommendation is 1:1.
  • Maple syrup –> If you’re hoping to swap the maple syrup for another kind of sugar, make sure you use a liquid sweetener such as honey or agave. Swap recommendation is 1:1.
If you’re wondering what to swap out for the eggs, then this recipe isn’t for you! This is a nut butter and egg-based recipe, so I wouldn’t suggest nixing those!

Storage

Store these delicious peanut butter oatmeal bars in an airtight container in the refrigerator for up to 5 days. Freezer instructions: to freeze, place cooled bars on a cookie sheet. Then, freeze for 1 hour. Transfer bars from cookie sheet to a freezer-safe gallon-size bag. Remove as much air as possible and freeze for up to 3 months. Peanut Butter Cookie Dough Bars

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4.51 from 61 votes

Peanut Butter Oatmeal Bars

These Oatmeal Peanut Butter Cookie Bars are about to change your life. They’re gooey on the inside, made with wholesome ingredients, and kid-friendly! This recipe uses all-natural sugar (hey, maple syrup!), white whole wheat flour, rolled oats, and all-natural peanut butter to keep these peanut butter oatmeal bars healthy and better-for-you!
Prep: 15 minutes
Cook: 15 minutes
Total: 30 minutes
Servings: 9
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Ingredients 

Dry Ingredients

Wet Ingredients

Instructions 

  • Preheat the oven to 350ºF and spray an 8×8 baking pan with non-stick cooking spray or line with parchment paper.
  • Next, add all of your dry ingredients to a bowl and mix well. Set aside.
  • In a separate bowl, whisk your eggs. Then add the rest of your wet ingredients to the eggs. Mix well.
  • Slowly add your dry ingredients to wet ingredients. When ingredients are well combined, pour dough into your baking pan. Spread evenly.
  • Bake at 350ºF for 15-18 minutes (depending on your oven) and how gooey you want your bars).

Tips & Notes

  • Option to sub any other drippy nut butter such as cashew or almond for the peanut butter.
  • Option to sub the white whole wheat flour for a gluten-free flour blend. We do not recommend subbing for coconut flour.

Nutrition

Calories: 361 kcal, Carbohydrates: 37 g, Protein: 9 g, Fat: 21 g, Fiber: 5 g, Sugar: 19 g

Nutrition information is automatically calculated, so should only be used as an approximation.

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About Lee Funke

Lee is the founder of Fit Foodie Finds and based in Minneapolis, MN. She started this website in 2010 as a way to share her love for real food and wellness. The internet has changed so much since then and so has Fit Foodie Finds. Today we're a female-run recipe website publishing hundreds of tried and true recipes developed and tested by our team.

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Clare
Clare
September 1, 2020 5:57 pm
Recipe Rating :
     

5 stars
This is my all time favorite sweet treat to make! Super easy to throw together with ingredients I always keep in my pantry, and sooo delicious!

Dorikong
Dorikong
July 25, 2020 8:40 pm

Light and fluffie! Used 1/3 c agave since I wanted it let sweet and didnโ€™t have maple syrup. Thanks for the recipe.

Casey Bakewell
Casey Bakewell
June 18, 2020 5:55 pm
Recipe Rating :
     

5 stars
My 4 year old said, “yum! Good job mom” when I made these๐Ÿ˜

Laura
May 24, 2020 2:00 pm
Recipe Rating :
     

5 stars
These came out perfect! I cooked them for 17 minutes at 350 and did not have any issues with goopiness or dryness. They are super chocolatey and peanutbuttery! Will definitely make again soon ๐Ÿ™‚

Katie
Katie
May 4, 2020 9:09 pm
Recipe Rating :
     

4 stars
I had the same issue with the soppy middle after baking for the suggested time! I did end up baking an extra 10 minutes and they solidified for the most part!! If anyone has that issue, I would continue baking (maybe do a foil tent) until set. ๐Ÿ™‚

Dan WELBORN
Dan WELBORN
April 11, 2020 6:22 pm
Recipe Rating :
     

2 stars
I don’t get what went wrong since it seems other people followed the recipe and got a solid product. Mine turned out not gooey, but goupy. There’s no cutting it into bars, it’s just like batter. It was starting to get too brown around the edges, and it rose, but when I pulled it out it was jiggly and it sank in the middle after ten minutes or so. I wonder if there’s supposed to be more than a cup oats, or more than 1/4 cup of flour? The wet ingredients outweigh the dry.

Andy
Andy
April 6, 2020 6:53 pm
Recipe Rating :
     

1 star
I was excited for these bars. Sadly I found them to be quite a let down. Way too much cinnamon. Overpowers all the peanut and chocolate and vanilla flavors. Came out very fluffy as well. Definitely not gooey.

Fred
Fred
January 28, 2021 11:21 am
Reply to  Andy

I had the same results. I did substitute Whole Wheat flour for white, but I don’t know if that was the issue. Maybe I should have pulled them from the oven earlier. If I make again, I will bake for less time and use less cinnamon.

Carolyn
Carolyn
March 29, 2020 3:30 pm
Recipe Rating :
     

5 stars
Fit Foodie recipes never disappoint, these were awesome! My husband is a sucker for anything PB & Chocolate (well, so am I) and it’s great to have a healthier option. I subbed honey for the maple syrup and we gobbled these gooey bars right up.

Steph
Steph
February 7, 2020 4:31 pm
Recipe Rating :
     

5 stars
Love!!! I swapped out chocolate chips for a mix of white chocolate and peanut butter chips. Tastes like a warm peanut butter and fluff blonde. SO GOOD!!!

Wanda
Wanda
December 12, 2019 7:19 pm

Mine turned out dry and I followed instructions through. Any suggestions?