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 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:
- I replaced the 1 ⅔ cups of gluten-free flour blend with 2 cups of quick oats, turned into oat flour using my blender
- 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).
- Because I was adding more banana, I decided to omit the butter and see what happened. Spoiler alert: it worked like a charm!
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!
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!
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.
More Healthy Banana Bread Recipes:
- Paleo Poppy Seed Almond Banana Bread
- Double Chocolate Gluten-Free Banana Bread
- Paleo Strawberry Banana Bread
- Paleo Carrot Cake Banana Bread
- Blender Oat Blueberry Banana Bread
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!

Flourless Oatmeal Banana Bread
Flourless Banana Bread made with oats! No oil, butter, refined sugar or flour.
Ingredients
- 2 cups quick oats, blended into flour
- 4 large ripe bananas, 2 cups, mashed
- 2 eggs
- 2 tsp pure vanilla extract
- 1/2 cup coconut sugar
- 2 tsp ground cinnamon
- 1 tsp baking soda
- 1/2 tsp sea salt
- 1 tsp lemon juice, or lime juice
Instructions
- Preheat the oven to 350 degrees F and line a 9” x 5” loaf pan with parchment paper.
- 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.
- 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!
Nutrition Information:
Yield: 1 Serving Size: 1 of 10Amount Per Serving: Calories: 227Total Fat: 4gUnsaturated Fat: 0gCarbohydrates: 44gFiber: 5gSugar: 19gProtein: 7g
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.
X
Tuesday 30th of June 2020
Oats are not gluten free. Especially if you have coeliac disease.
Julia
Tuesday 30th of June 2020
They are if they aren't grown next to wheat. There may be cross-reactivity in those with Celiac, but oats don't contain gluten by nature unless they are contaminated when grown next to wheat. Oats that are certified gluten-free are grown away from wheat for no gluten contamination.
Christina
Saturday 27th of June 2020
Would rolled oats work For this recipe ??
Julia
Sunday 28th of June 2020
Hi Christina! Yes, rolled oats will work great! Hope you enjoy! xo
Judy santora
Thursday 25th of June 2020
Instead of Mashed bananas. What can be substituted?. Would the rest of the ingredients remain the same. I love the recipe Thanks Judy S