When it comes to easy breakfast ideas, it’s always a huge help to have a wholesome option ready to go for those super busy weekday mornings. These Thick and Chewy Oatmeal Breakfast Bars hit all the marks. They’re exactly like a chewy granola bar recipe with infinitely adaptable ingredients, delicious flavor, and that excellent texture we all love in a baked oatmeal bars.

A stack of 3 Thick and Chewy Oatmeal Breakfast Bars are on a white counter.

Over the years, I’ve made probably 4 different granola bar recipes.

But I just haven’t been able to get behind any of them. You know, to love them enough to share them here on the site.

So today, my friends, I bring you a special treat: the one and only granola bar recipe you’ll ever need. Like, for the rest of your life. That is, if you’re “into” chewy granola bars.

And to be honest, the ingredient lists for this breakfast bar recipe and the previous crunchy breakfast bar recipes I’ve made aren’t so different. However, they are vastly different from any box of store-bought granola bars since they don’t contain preservatives.

The cut Thick and Chewy Oatmeal Breakfast Bars are on a piece of brown parchment paper.

About These Granola Breakfast Bars

I think the major difference is that this homemade granola bar recipe is baked in a smaller pan than many of the other recipes I’ve made.

This prohibits the bars from drying out too much in the middle and keeps them nice and chewy. They end up being thick granola bars, just as the recipe name suggests!

And I hope you will make them because they’re a grab-and-go breakfast (or snack) treat that’s just too great to pass up!

Ingredients for Oatmeal Breakfast Bars are laid out in bowls on a white counter.

Ingredients for Oatmeal Breakfast Bars

Here’s the basic grocery list for these baked oatmeal bars. Be sure to keep scrolling down to the recipe card for the full printable Ingredients list!

  • Oats – Quick-cooking and old fashioned oats both work here.
  • Granulated sugar – Optional! See the “FAQ” section below for more information
  • Oat flour (or ⅓ cup oats, processed until finely ground in a food processor or blender)
  • Ground flax seed (optional)
  • Table salt
  • Ground cinnamon
  • Dried fruits, nuts, chocolate, coconut, seeds, etc. – See the “Add-ins” section below for more information!
  • Peanut butter or another nut butter
  • Pure vanilla extract
  • Unsalted butter, melted
  • Honey or maple syrup
  • Corn syrup – Use light corn syrup or Lyle’s Golden Corn Syrup
Overhead photo of Thick and Chewy Oatmeal Breakfast Bars with add-ins scattered around the bars.

Homemade Granola Breakfast Bar Add-ins

These breakfast bars have more wholesome ingredients than many of the store-bought granola bars you can buy.

Just like any homemade granola bar recipe, what you add in is completely up to you and the possibilities are endless!

Peanut butter is being mixed into the oats to make the Thick and Chewy Oatmeal Breakfast Bars.

We always have sweetened shredded coconut, some type of dried fruit – I usually use dates – and chocolate chips in one form or another in the pantry. So that’s what we tossed into our bars.

I also added some ground flax for a boost of omega fats and soluble fiber and some peanut butter for a bit of extra flavor.

Close up photo of the cut Thick and Chewy Oatmeal Breakfast Bars on a piece of brown parchment paper.

Nut Free Breakfast Bars

For those with nut allergies, this bar recipe is such a great nut-free option! Depending on your needs for food allergies, you can make the recipe exactly as you need it to be. 

If you’re baking for someone with a tree nut allergy and/or a peanut allergy, simply skip the tree nuts and/or peanuts. 

The ingredients for the Thick and Chewy Oatmeal Breakfast Bars have been mixed together in a glass bowl.

Since you’re making these nut-free granola bars at home and not relying on an ingredient list on a package, you completely control the ingredients you add!

Added Sugar Free Breakfast Bars

I should also add here that while the recipe calls for up to ¾ cup of granulated sugar, I didn’t add any sugar at all.

Well, actually, I forgot to add the sugar. Oops!

Overhead photo of cut up Thick and Chewy Oatmeal Breakfast Bars. Some of the bars are wrapped in brown parchment paper and twine for an easy grab and go breakfast option.

But since my add-ins were sweet on their own, I felt the additional white sugar would have ruined these bars.

I’m keeping it in the recipe as it was written but please, read the note included and judge accordingly when you make them. 

Print
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A stack of 3 Thick and Chewy Oatmeal Breakfast Bars are on a white counter.

Thick and Chewy Granola Breakfast Bars


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5 from 1 review

Description

Thick and Chewy Oatmeal Breakfast Bars are a fantastic and quick on-the-go meal when time is short in the morning. While I added peanut butter to them, you can easily make them as nut free breakfast bars. What's not optional for these gluten free granola bars though, are the chocolate chips! (well, not in my opinion anyway!)


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Ingredients

Units Scale
  • 1 2/3 cups oats (quick-cooking or old fashioned)
  • 1/2 to 3/4 cup granulated sugar (use more for a sweetness akin to most purchased bars; use less for a mildly sweet bar; omit altogether if your add-ins are super sweet)
  • 1/3 cup oat flour (or 1/3 cup oats, processed until finely ground in a food processor or blender)
  • 2 tbsp finely ground flax seed (optional)
  • 1/2 tsp salt
  • 1/2 tsp ground cinnamon
  • 2 to 3 cups dried fruits, nuts, chocolate, coconut, seeds, etc. (total of 10 to 15 oz)
  • 1/3 cup peanut butter or another nut butter (optional but recommended)
  • 1 tsp pure vanilla extract
  • 6 tbsp unsalted butter, melted
  • 1/4 cup honey or maple syrup
  • 2 tablespoons corn syrup (light or Lyle’s Golden)

Instructions

  1. Preheat oven to 350° F.  Line the bottom of an 8-inch square pan with parchment paper leaving the ends of the paper to hang up and over the two opposite sides of the pan.  Lightly grease the paper and the exposed sides of the pan.
  2. In a large bowl, stir the oats, sugar (if using), oat flour, flax, salt, cinnamon, and your dry add-ins together.  In a separate medium bowl, whisk the peanut butter, vanilla, butter, honey/maple syrup, and corn syrup together until combined and smooth.  Immediately pour the wet mixture over the dry ingredients and with a rubber spatula, mix everything together until the oats are well-coated and sort of crumbly.
  3. Transfer the granola mixture to the pan, pressing it down firmly and evenly into the pan. Make sure the granola is tucked into the corners and sits tightly up against the sides of the pan – this will help when cutting them.
  4. Bake for 30 to 40 minutes, until the top is nicely browned. Cool the pan on a wire rack for 20 minutes then transfer the uncut bars on the parchment paper from the pan to the rack to cool completely. 
  5. Once they've cooled, transfer them to the fridge to set up for at least 30 minutes before cutting. Cut into 2-inch square pieces. Once cut, wrap them individually in plastic wrap and store them in the fridge. This is not for food safety reasons because they will be fine at room temperature, but difficult to eat. The cold breakfast bars will stick together better and will be easier to eat on the go.

Notes

STORAGE: Once cut, wrap them individually in plastic wrap and store them in the fridge. This is not for food safety reasons because they will be fine at room temperature, but difficult to eat. The cold breakfast bars will stick together better and will be easier to eat on the go.

adapted from adapted from King Arthur Flour via Smitten Kitchen

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Thick and Chewy Granola Breakfast Bars are cut and ready to serve.
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  • October 11, 2012 at 9:25 AM

    I love granola bars and I’m happy that you found a go to recipe with these treats!

  • October 11, 2012 at 1:01 PM

    These sound lovely!

  • October 11, 2012 at 4:32 PM

    i absolutely love that you put dates in these granola bars! i’ll have to try that out- i love dates but always forget to use them in things. 🙂

  • October 11, 2012 at 7:19 PM

    these look so great!! I can’t wait to make them, thanks for sharing!

  • October 12, 2012 at 6:23 AM

    I have been on the hunt for a really good, reliable granola bar recipe. This one sounds like the perfect answer!!

    • October 12, 2012 at 8:17 AM

      It’s a great recipe, Regan. I love how cutting out the white sugar doesn’t affect the taste!

  • suev
    January 20, 2013 at 5:47 PM

    I MAKE THE BEST VARIATION OF THIS BAR. THE LESS TIME U COOK YOUR INGREDIENTS THE MORE NATURAL PROPERTIES AND HEALTH U HOLD INTO THE INGREDIENTS U USE!

    INSTEAD OF COOKING THE BARS A LONG TIME I COOK THE: BUTTER, CORN SYRUP AND HONEY LIKE I DO WHEN I MAKE ALMOND ROCCA. I COOK IT TO “SOFT CRACK” TEMPERATURE ON A CANDY THERMOMETER SO THAT IT IS NICE AND GOOEY, WHILE I AM COOKING THIS I MIX THE PEANUT BUTTER AND VANILLA INTO ONE ANOTHER ADD THE SALT, DIREGARD THE SUGAR AND ADD THIS MIXTURE TO A MIX OF MY NUTS AND FRUIT AND OATS
    WHEN THE CANDY MIXTURE IS COMPLETE I POUR IT OVERTOP THE DRY MIX UNTIL THOUROUGHLY COATED AND THAN BAKE A T A LOW TEMP FOR A SHORT PERIOD OF TIME AND THAN REFRIGERATE TO SET! THE BARS TURN OUT
    AMAZING!

  • […] Adapted from Smells Like Home and Smitten Kitchen; originally from King Arthur […]

  • Crafty Girl
    October 19, 2021 at 10:20 AM

    Wow!
    These look amazing!
    I can’t wait to make these.
    I was wondering if there would be a way to add pumpkin and make one for in the Fall.
    Please let me know. Thanks

    • Tara
      November 7, 2021 at 11:27 AM

      Thank you! I haven’t tried pumpkin in this recipe but in my experience, pumpkin makes baked recipes very soft. Instead of canned pumpkin, you could always add a 1/2 teaspoon of pumpkin pie spice to give the granola bars a fall vibe. Hope you enjoy them!

  • Lil
    May 11, 2022 at 7:17 PM

    What can I use instead of corn syrup? Thank you.

    • Tara
      May 25, 2022 at 2:04 PM

      Hi Lil, I haven’t tried a corn syrup substitute for this recipe but I think honey or agave syrup would work ok. I would reduce the amount of honey/syrup. Hope that helps!

  • Lorraine
    June 4, 2023 at 1:55 PM

    Instead of butter would coconut oil work?

    • Tara
      November 5, 2023 at 12:21 PM

      Butter should work ok, sure.

  • Carol
    October 1, 2023 at 4:11 PM

    I’ve been making those King Arthur Flour granola bars for more than 15 years. I began to curse the sticky bun sugar AND King Arthur for their over-pricing. I did find a very cheap source for the florenta sugar, but I had to buy 10 bags. I made the bars using the replacement ingredients suggested, but it just wasn’t as good. They really had me! AND the bars would fall apart when I cut them. Just the same as the Smitten Kitchen recipe did. I decided to try this recipe, Tara, and I’m so glad I did,! These are delicious, affordable, and after refrigeration, they stay together! I’m sold! Thank you for solving my dilemma!

    • Tara
      November 5, 2023 at 12:09 PM

      This is fantastic to hear, Carol! And I agree – the sticky bun sugar is overpriced, especially when you have to pay for shipping too. Thanks so much for leaving a review on these bars!

  • Kristin
    April 9, 2024 at 9:08 PM

    I have been making these for several years and my kids (now 18 and 14) LOVE them. They come out differently each time, but my go-to additions are dates, coconut (unsweetened if I can find it) and chocolate chips. I was short on coconut last time and made up some of the difference with pecans, which also got rave reviews. I can’t say enough good things about this recipe — it really is a staple for me to batch bake, stock the deep freeze and pull out for breakfast on a busy week. Thank you for sharing it all those years ago!