This easy peanut butter breakfast bars recipe is made in one bowl in 30 minutes, and is loaded with fiber, protein & omega-3s to keep you full all morning long! Plus they’re gluten-free, dairy-free, refined sugar free and vegan! I have eaten one every day for almost 15 years – it’s my all-time favorite recipe.

When I decided to start this website in 2016, I knew right away that this would be my very first post. These Healthy Breakfast Bars have been my constant companion for the last 15 years are are, hands down, my favorite recipe of all time.

These breakfast bars gave me energy through my career as a high school chemistry teacher. They helped me grow all the necessary parts of our very first tiny little human, and the second, and the third, and the fourth, and the fifth, and the sixth.

These healthy oatmeal breakfast bars sustained me as we moved across the country away form all our friends and family. Every night when my head hits the pillow and I close my eyes, I know one of these beauties will be waiting for me when I wake up. I love them. Truly I do.

I mean, what’s not to love? These breakfast bars are full of fiber, protein, potassium, omega-3s, and are SO delicious. They are gluten, dairy and refined sugar free, but they are hearty enough to keep you full for hours. And they’re easy to make! To me, they are perfect.

Healthy Breakfast Bars: Ingredients & Substitutions 

I get a lot of questions about possible substitutions for this breakfast bar recipe, so let’s chat about them now! A great thing about this recipe is that it’s fairly customizable.

• Quick Cooking Oats. These breakfast bars have the best texture when they’re made with quick cooking oats. However, you can use old-fashioned oats instead just understand they will be a little chewier with a more chunky texture. I have put rolled oats in the blender and pulsed 2-3 times to create the texture of quick-cooking oats when I ran out.
• Almond flour/meal: I love putting almond meal in these breakfast bars for the added protein. If you are allergic to almonds you may substitute 1/2 cup of extra quick-cooking oats in place of the almond meal.
• Ground Flaxseed: You may substitute 1/2 cup of almond meal or extra oats in place of the ground flaxseed.
• Protein Powder: This is a completely optional ingredient! I love using Vanilla Protein Powder for a little flavor and protein boost, but you can omit it entirely if you don’t keep this ingredient on hand!
• Honey: Honey is my favorite liquid sweetener to use in this breakfast bar recipe, and pure maple syrup (which is a great vegan substitution), comes in a close second. Really, any liquid sweetener can be substituted for honey. You also may use an extra banana or an extra 1/4 cup of applesauce instead if you’d prefer a less-sweet, sugar free option!
• Peanut Butter:  I usually use two types of peanut butter when I make this recipe. For the bars themselves I use a natural creamy peanut butter. For the top I like to use a mixture of a natural peanut butter and one that is more firm. This is totally personal preference, I just like the way the top tastes with two different varieties! Feel free to substitute any creamy nut or seed butter of your choice, however peanut butter is my favorite!

How to make healthy Breakfast Bars 

Since I have made this breakfast bar recipe every week for 15 years now, I’m pretty sure I could make them in my sleep! However, in order to be helpful I want to walk through all the steps in this recipe for you.

Combine wet ingredients 

To make these breakfast bars in one bowl, start by mashing the banana. I use a potato masher, but a fork would work as well.

Then add the rest of the ingredients and stir until the mixture is uniform throughout!

Add the dry ingredients and mix

Next, add all the dry ingredients to the wet mixture and stir to combine.

As you can see, the final mixture should not be runny. It should be moist but not at all liquidy.

Bake for 20 minutes

This healthy breakfast bars recipe requires two sessions of baking. First, bake the breakfast bars naked (without any peanut butter on top) for 20 minutes.

The top should be slightly firm when the breakfast bars are removed from the oven. Since all ovens are different your baking time may vary slightly. However, it is important that the top isn’t mushy and that you can spread peanut butter around on it without it becoming a mess!

Top with peanut butter

After 20 minutes of baking, remove the oatmeal breakfast bars from the oven and spread a layer of peanut butter on top. The amount you use will depend on your taste.

I enjoy a super thick layer of peanut butter, so I use about 1/4 to 1/2 cup. Use as much or as little as you’d like!

Bake for an additional 10 minutes

Return the breakfast bars topped with peanut butter to the oven for 10 more minutes. This step sets the peanut butter and finishes baking the bars.

As you can see, the final product will have nice little sinkholes of peanut butter on top! YUM!

Chill overnight

These breakfast bars are best served cold. I always make them the day before I want to eat them and let them cool in the refrigerator overnight.

I have eaten them warm when I didn’t have my act together and they’re still good, but not as good if catch my drift!

Cut & Enjoy

Finally, once the breakfast bars have cooled in the pan overnight, cut them into squares and enjoy! Or you can cut them and save them for later! I always cut them into 9 breakfast bars, because it’s the perfect size breakfast for me to enjoy with a green smoothie.

Store/freeze

I make a large batch of these (sometimes a double batch) to eat all week long. Wrap them individually in plastic wrap and store them in an airtight container in the refrigerator for up to 1 week or in the freezer for up to 2 months. Thaw slowly in the refrigerator (do not microwave).

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I am a creature of habit. I eat one of these peanut butter oatmeal breakfast bars every.single.morning with my favorite green smoothie. People don’t understand me. “Don’t you get tired of eating the same thing?” They ask. “Wouldn’t you rather mix it up?” They say.

No, I don’t believe I would. But I am grateful for your concern about my lack of breakfast-food variety.  

I have tried mixing it up in the mornings, but it’s no use. I find myself wishing I had just eaten one of these breakfast bars. So if it ain’t broke I won’t fix it and I’ll just keep on keeping on.

I mean, what’s not to love?!, these breakfast bars are full of fiber, protein, potassium, omega-3s, and are SO delicious. They are gluten, dairy AND refined sugar free, but they are hearty enough to keep you full for hours. AND they’re easy to make! To me, they are perfect.

Dear breakfast bars, to me, you are perfect.

Love, Laura.

This recipe was originally published on January 26, 2016 as the first post on JoyFoodSunshine! It has been updated with new photos, a video and step-by-step instructions, but the recipe remains unchanged!

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