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Chocolate Frosted Peanut Butter Oat Bars


Chocolate Frosted Peanut Butter Oat Bars Recipe l

How is it already Memorial Day this weekend? This month, especially the last two weeks, flew by!

The past week was spent in Florida where I attended the Food Blog Forum conference. After the conference, we headed to St. Pete Beach for a mini vacation.

It was so nice to not have a schedule for a few days. Just sit at the beach and do nothing! We just got back at 1 am Thursday morning, so I am glad that this weekend is 3 days long!

That way we can slowly ease back into the reality of actually having a schedule with no random walks on the beach!

Chocolate Frosted Peanut Butter Oat Bars Recipe l

Do you have any plans for Memorial Day? We’re hoping to grill out if the rain stays away.

If you saw my burger recipe on Monday, you know what I like to eat when we go on picnics and many of those foods will be present on Monday!

If you’re planning a picnic, you need to add these chocolate frosted peanut butter oat bars to your menu. (Oh, and make sure you make those chili lime feta burgers from Monday!)

Chocolate Frosted Peanut Butter Oat Bars Recipe l

You can’t go wrong with a chewy, peanut butter oat base and creamy chocolate peanut butter frosting!

The oat layer tastes just like a chewy peanut butter oatmeal cookie and the rich chocolate frosting is swirled with a sweet, peanut butter frosting.

These bars are the perfect companion to any picnic. They are easy to handle and pack, making them easy to bring with you to your next outing!

Chocolate Frosted Peanut Butter Oat Bars Recipe l

Chocolate Frosted Peanut Butter Oat Bars

Yield: 36 bars
Prep Time: 15 minutes
Bake Time: 15 minutes
Total Time: 30 minutes


For the Bars

  • 1/3 Cup sugar
  • 1/2 Cup brown sugar
  • 1/2 Cup butter, softened
  • 1 egg
  • 1/2 Cup peanut butter
  • 1 Cup all-purpose flour
  • 1 Cup oats
  • 1/2 teaspoon baking soda
  • 1/4 teaspoon salt

For the Frosting

  • 1 Cup confectioner's sugar
  • 1/4 Cup unsweetened baking cocoa
  • 1/4 Cup peanut butter
  • 1/4 Cup milk, divided


  1. Preheat oven to 350 degrees Fahrenheit. Lightly spray a 9x13 baking dish with nonstick cooking spray or line with parchment paper.
  2. In the bowl of stand mixer, cream together sugars and butter. Add in egg and peanut butter and beat until well-combined. Stir in flour, oats, baking soda, and salt to combine.
  3. Press dough into the bottom of prepared baking dish. Bake for 15-20 minutes or until just starting to turn golden brown. Remove to wire rack to cool completely.
  4. To prepare frosting: Stir together confectioner's sugar, peanut butter, and 3 tablespoons milk until creamy. Set aside a 1/3 Cup. Stir baking cocoa into the remaining frosting. Add another 1 tablespoon milk and mix until creamy. You may need to add another tablespoon of milk to reach desired consistency.
  5. Spread chocolate frosting over the top of cooled bars. Drop peanut butter frosting by tablespoon full over the top of the chocolate frosting. Swirl peanut butter frosting with a knife to create a marbled effect.
  6. Allow frosting to set and cut into bars.
  7. Store leftovers in an airtight container.

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Nutrition Information:
Yield: 36 Serving Size: 1
Amount Per Serving: Calories: 109Total Fat: 6gSaturated Fat: 2gTrans Fat: 0gUnsaturated Fat: 3gCholesterol: 12mgSodium: 82mgCarbohydrates: 13gFiber: 1gSugar: 8gProtein: 2g

Nutrition information shown is an estimate provided by an online calculator and may not always be accurate. It should not be considered a substitute for a medical professional’s advice.

Did you make this recipe?

Please leave a comment or rating on the blog to let us know or share a pic on Instagram and tag @akitchenaddiction

This recipe is slightly adapted from Betty Crocker.


Sunday 16th of March 2014

Made these and they were great! :) Just a question though — how do you make the gorgeous swirl effect? I attempted it but it turned out really ugly..yummy nonetheless!

Jessica@A Kitchen Addiction

Monday 17th of March 2014

I'm so glad you liked them!! Thanks for letting me know! I spooned the peanut butter frosting randomly over the top. I then ran a knife back and forth lengthwise through the frosting. Hope that helps!


Thursday 21st of November 2013

I made these today!!! I am addicted! I cannot stop eating them! How many calories and fat are in these? I lost 70 pounds and cannot handle these in my home! I will be taking them to all parties from now on! Great-tasting and easy!

Jessica@A Kitchen Addiction

Thursday 21st of November 2013

Yay! So glad you like them! I'm afraid I don't know the nutritional value of these bars...I always make sure that I'm making them when I can give most of them away because pb & chocolate is hard to resist! :)

Anna @ Hidden Ponies

Wednesday 29th of May 2013

I looooove oat bars, and this base looks absolutely perfect!


Wednesday 29th of May 2013

These look so pretty! I'm sure that they taste amazing too.


Wednesday 29th of May 2013

These bars are what my dreams are made of! The frosting sounds delicious and you made it look so pretty!

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