Easiest Microwave Chewy Peanut Butter Granola Bars

April 24, 2013

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These granola bars are brimming with peanut butter flavor, they’re perfectly chewy and they couldn’t be easier to make! A great on the go snack made with real ingredients, no artificial flavors or preservatives here.

peanut butter granola bars2.

So I had surgery on my hip bright and early this morning, so early I’d probably consider it to be the middle of the night (waking up at 4:00am is like my worst nightmare. Actually I wish it would have been a nightmare, because that would mean I would have still been asleep and dreaming at 4 :)) but anyway things went so well I’m right back to work today.

Okay just kidding, I’m basically going to be a couch potato for the next week. Meaning I’m going to be spending unbelievably ridiculous amounts of time on Pinterest dreaming of all the delicious things I could be making.

And browsing the web for beautiful kitchen ideas that I’m most likely never going to use, shopping for clothes online and pretending to care about fashion and begging my husband to learn to cook (as he refuses) so he will make something other than a box of mac and cheese with a side of crackers and string cheese for dinner or picking up take out every night. Why do I care if he learns to cook?

peanut butter granola bars3.

Well I’m going to need some dinner this week and I just want him to see how fun cooking can be (which he would adamantly disagree with)… I know him too well though so I made freezer meals. I also made some of these amazing and incredibly easy granola bars yesterday.

So easy that I’m sure I could make more of these during this lounge week. The coating is made in the microwave and they require no baking so these could easily be prepared in 10 minutes. These tasty, mostly healthy yet seemingly dessert like bars remind me a lot of these treats and these (minus the topping).

I have a feeling you are going to love these not only for there simplicity but of also for their addictive, peanut buttery deliciousness. Enjoy!

5 from 1 vote

Microwave Peanut Butter Granola Bars

These granola bars are brimming with peanut butter flavor, they're perfectly chewy and they couldn't be easier to make! A great on the go snack made with real ingredients, no artificial flavors or preservatives here.
Servings: 12
Prep10 minutes
Cook2 minutes
Chill30 minutes
Ready in: 42 minutes


  • 2 cups quick oats
  • 1 1/2 - 2 cups Rice Krispies cereal*
  • 1 cup chunky peanut butter (or 3/4 cup creamy peanut butter)**
  • 1/2 cup honey
  • 1/4 cup dark brown sugar
  • 1/8 tsp salt
  • 1/2 tsp vanilla extract


  • Line an 8 by 8-inch baking dish with aluminum foil leaving a 2-inch overhang. In a large mixing bowl, toss together oats and Rice Krispies, set aside.
  • In a separate microwave safe mixing bowl, combine peanut butter, honey, brown sugar and salt. Heat mixture on HIGH power for 1 minute, remove and stir. 
  • Return to microwave and heat on HIGH power 1 minute longer. Remove from microwave, pour in vanilla and whisk mixture for 30 seconds.
  • Pour peanut butter mixture over oat mixture and toss well to evenly coat. 
  • Pour mixture into prepared baking dish, firmly press mixture into an even layer. Cover with plastic wrap and freeze 10 - 15 minutes or chill in refrigerator 30 minutes.
  • Lift bars from dish using foil overhang and cut into squares. Store in an airtight container.


  • *I used 2 cups Rice Krispies but I thought it was slightly too much so I'd recommend start with 1 1/2 and if you think it could use more add in another 1/2 cup.
  • **If you use extra crunchy you will probably have to add a few more Tbsp as it will increase the peanut to peanut butter ratio.
  • Recipe source: adapted slightly from Kraft
Nutrition Facts
Microwave Peanut Butter Granola Bars
Amount Per Serving
Calories 250 Calories from Fat 108
% Daily Value*
Fat 12g18%
Saturated Fat 2g13%
Sodium 144mg6%
Potassium 205mg6%
Carbohydrates 32g11%
Fiber 3g13%
Sugar 19g21%
Protein 8g16%
Vitamin A 233IU5%
Vitamin C 2mg2%
Calcium 20mg2%
Iron 2mg11%
* Percent Daily Values are based on a 2000 calorie diet.
Nutrition values are estimates only. See full disclaimer here.

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  • Lor

    our 1st try for homemade! Our girls have nut allergies so we swapped for sunflower butter and added some mini choc chips. They loved it especially because they made it themselves! Thank you!

  • Denise Volk

    I am going camping in the back country and no way to keep things cold. Would these hold up for 4 days with back packing.

    • Jaclyn

      Jaclyn Bell

      My guess is that they’d crumble a bit while back packing. They’d probably hold up better in a container though.

      • Lauren Bower

        They will definitely hold up I would think, if they’ve survived the USPS to the desert. I would package them up as you find appropriate though of course!

  • Miriam

    My kids can’t bring anything with nuts to school. Can you think of a substitute for peanut butter that we could use to make this? It sounds amazing.

    • Lauren Bower

      We’ve used the cookies and cream “peanut butter”

  • Jacqui

    I stumbled upon this recipe after searching on Pinterest – I was looking for a way to recreate the Jif Creamy PB bars without so much sugar / unnecessary ingredients and I REALLY think these will be perfect! I will probably blog about them if so and i’ll be sure to check back and let you know :) THANK YOU!!!!

  • Laur Bower

    Just want to say this is my tried and true recipe, for sending to my husband! While he’s deployed or even just tdy for a month or so, he always asks for these! They survive the mail service all the way to the sandbox! Thank you for sharing!!

    • Jaclyn

      Jaclyn Bell

      I’m so happy to hear your family has enjoyed this recipe LeeAnne! Thanks for your comment!

  • DD

    Just made these this morning and they were wonderful! Hubby and I both gobbled one up for breakfast today. I added some craisins and some chia seeds. Came out great!!