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Flourless Oatmeal Banana Bread (Gluten-Free)

Flourless Oatmeal Banana Bread made oil-free, dairy-free, gluten-free AND refined sugar-free! This healthy banana bread recipe is fun and easy to make using quick oats.

A slice of Flourless Oatmeal Banana Bread on a plate

A couple months ago, I posted The Best Gluten-Free Banana Bread Recipe , and you guys ate it up! In fact, it continues to be the third most visited recipe on my site.

One person who made that recipe commented that she used oat flour and it worked for her marvelously. 

So that got me thinking. 

I have a stockpile of oats, but I don’t typically carry oat flour on hand (can you relate?)… so why not try out the recipe by turning oats into oat flour?

So I rifted off the original recipe and made a few tweaks:

  1. I replaced the 1 ⅔ cups of gluten-free flour blend with 2 cups of quick oats, turned into oat flour using my blender
  2. I used MORE banana (a whopping 2 cups of mashed banana instead of the original 1.5 cups, which is about 4 decent-sized ripe bananas).
  3. Because I was adding more banana, I decided to omit the butter and see what happened. Spoiler alert: it worked like a charm!

Loaf of gluten-free oatmeal banana bread

If you’ve never made oat flour using quick oats, it’s crazy easy. You simply toss the oats in a blender and blend them on a low / low-medium speed until a substance resembling flour forms. This only takes 10 to 30 seconds! 

Plus, it’s totally okay if the blended oats don’t form a super fine flour…I leave mine semi-gritty and it still turns out marvelously!

To bring this thing full circle, this flourless oatmeal banana bread is…

  • Naturally gluten-free
  • Flourless
  • Oil-free and butter-free
  • Moist, flavorful, perfectly sweet and cinnamony
  • Refined sugar-free

Let’s bake it up!

Loaf of dairy-free gluten-free oatmeal banana bread with slices cut

How to Make Flourless Oatmeal Banana Bread:

Preheat the oven to 350 degrees F and line a 9” x 5” loaf pan with parchment paper. 

Place the oats in a blender and blend on medium speed until a flour forms (this only takes about 20 to 30 seconds. Remember, it is fine if the flour is somewhat gritty).

Transfer the oat flour to a mixing bowl. Add the coconut sugar, baking soda, sea salt and cinnamon and stir together until combined. 

Mash the bananas in a separate mixing bowl then whisk in the eggs and vanilla extract.

Stir the dry ingredients into the bowl with the wet ingredients. Add in the lime juice and stir to incorporate.

Transfer the batter to the parchment-lined loaf pan and smooth into an even layer. If desired, sprinkle some whole quick oats on top for looksies.

Bake for 40 to 45 minutes, until banana bread has risen substantially and the top appears firm.

Remove from the oven and allow bread to cool at least 30 minutes. Tug on the edges of the parchment paper to lift the loaf out of the pan and place it on a cutting board. Cut thick slices and enjoy!

Loaf of oatmeal banana bread in a loaf pan

close up top down photo of slice of moist banana bread

Recipe Adaptations:

  • Add ½ cup to ⅔ cup chopped walnuts or pecans to the batter.
  • Toss in ½ cup to ⅔ cup chocolate chips or chocolate chunks.
  • Whip up a streussel topping for the top of the banana bread.
  • If you’re looking for a grain-free banana bread recipe, check out my Paleo Banana Bread using almond flour or my Coconut Flour Banana Bread.
  • Replace the coconut sugar with brown sugar.

Oatmeal Banana Bread on parchment paper with a napkin and a banana

More Healthy Banana Bread Recipes:

Your oatmeal banana bread adventure starts MEOW!

My cookbook, Paleo Power Bowls, is now available! CLICK HERE to check it out. Thank you for your support!

If you make this recipe, please feel free to share a photo and tag @TheRoastedRoot on Instagram!

Loaf of oatmeal banana bread in a loaf pan

Flourless Oatmeal Banana Bread

Yield: 1 loaf
Prep Time: 15 minutes
Cook Time: 40 minutes
Total Time: 55 minutes

Flourless Banana Bread made with oats! No oil, butter, refined sugar or flour.

Ingredients

Instructions

  1. Preheat the oven to 350 degrees F and line a 9” x 5” loaf pan with parchment paper.
  2. Place the rolled oats in a blender and blend on medium speed until a flour forms (this only takes about 20 to 30 seconds. Remember, it is fine if the flour is somewhat gritty). Transfer the oat flour to a mixing bowl.
  3. Add the coconut sugar, baking soda, sea salt and cinnamon and stir together until combined.
  4. Mash the bananas in a separate mixing bowl then whisk in the eggs and vanilla extract.
  5. Stir the dry ingredients into the bowl with the wet ingredients. Add in the lime juice and stir to incorporate.
  6. Transfer the batter to the parchment-lined loaf pan and smooth into an even layer. If desired, sprinkle some whole quick oats on top for looksies.
  7. Bake for 40 to 45 minutes, until banana bread has risen substantially and the top appears firm.
  8. Remove from the oven and allow bread to cool at least 30 minutes. Tug on the edges of the parchment paper to lift the loaf out of the pan and place it on a cutting board. Cut thick slices and enjoy!
Nutrition Information
Yield 1 Serving Size 1 of 10
Amount Per Serving Calories 227Total Fat 4gUnsaturated Fat 0gCarbohydrates 44gFiber 5gSugar 19gProtein 7g

Flourless Oatmeal Banana Bread made oil-free, dairy-free, gluten-free AND refined sugar-free! This healthy banana bread recipe is fun and easy to make using quick oats.

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Chelsea

Friday 12th of November 2021

This bread is so good and I've made it several times. The whole fam loves it, thank you! I'm curious to know if I could replace some of the banana with pumpkin, or does it have too much moisture in it?

Julia

Friday 12th of November 2021

Hi Chelsea!

I'm so happy you like it! You should be able to replace some of the banana with pumpkin no problem! I think you shouldn't need to make any changes to compensate for the additional moisture, but if the batter looks too thin, you can add more oats or a few tablespoons of gluten-free flour. Let me know how it works out! xoxo

Angela R

Saturday 10th of July 2021

Really enjoyed this banana bread, so light and fluffy, I added some chopped walnuts and it turned out great 👍

Julia

Sunday 11th of July 2021

Right?! I love that texture. The chopped walnuts sound amazing! xoxo

Tabitha

Sunday 4th of July 2021

Can you use regular sugar instead of coconut sugar?

Julia

Tuesday 6th of July 2021

Hi Tabitha! Yes, absolutely! You can use either regular cane sugar or brown sugar. Hope you enjoy! xoxoxo

Anna

Sunday 8th of November 2020

I respectfully disagree, Hayden. In the FDA’s Food Labeling; Gluten-Free Labeling of Foods, Final Regulatory Impact Analysis Regulatory Flexibility Analysis, “ oats themselves are inherently gluten free and can be processed in a way that protects against such cross-contact”. According to this document it is not accurate to state that some people with Celiac react to small amounts of gluten in oats. There is no inherent gluten in oats. The report states less then 9% of people in gf diets “are allergic or intolerant to oats“ - not to gluten in oats. Thanks for listening.

Hayden

Tuesday 29th of September 2020

That's incorrect. Oats contain their own form of gluten, and a small proportion of coeliacs are susceptible.

The FDA has deemed it too difficult to label oats correctly as being merely wheat-gluten-free, but still containing oat gluten.

Here in Australia, oats that are free of wheat are labelled 'wheat free'. It's that simple.

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