This Paleo Banana Upside Down Cake is an impressive and delicious cake that’s gluten-free and refined sugar free. Sweetened almost entirely with bananas, this is a banana lover’s dream! This post is sponsored by ONE Banana.

Yes, it’s still pretty much the first week of January and everyone’s still dieting, or at least trying/pretending to – right? Today, we’re keeping in theme with the rest of the world and having something a bit healthier.
No, it’s not a salad or soup or “detox” anything. Yes, I am giving you a cake as my one of my first posts of the new year – #judgeme. BUT, this is a cake that you could theoretically eat for breakfast without feeling guilty, so let’s embrace it, okay?
The cake is gluten-free, refined sugar-free, Paleo-friendly, and absolutely FULL of bananas. Bananas are sort of magic when it comes to baking, particularly when they’re brown and yucky looking on the outside, but filled with sweetness on the inside. Bananas are the star of some of my all-time most popular recipes like my favorite Paleo Chocolate Chunk Banana Bread where bananas are the ONLY sweetener and these Vegan Blueberry Muffins, where bananas serve as an egg-replacer!
For the batter of this banana upside down cake, it’s best to use brown, super ripe bananas because bananas give all the sweetness the cake needs – there’s no other added sweetener except for the coconut sugar in the caramelized banana layer!
The batter is pretty much banana bread batter, but when you pour it over the banana slices nuzzled in a mixture of coconut sugar and coconut oil and let the bananas get golden and caramelized, you have to call this a cake.
Bananas are definitely the star of the show here – you’ll use at least five of them depending on their size – so this cake is for the true banana lovers. I used ONE Bananas, which I love because they’re organic, grown sustainably, and always sweet + delicious.
The true magic of this cake is revealed when you flip it over. The flip can be a stressful experience with any upside down cake, so to make my life easier I made the cake in a spring form pan. That way, when it’s finished you can take off the collar, gently flip it on to your plate, and peel off the bottom of the pan. Much easier than flipping and crossing your fingers it all comes out in one piece.
When the pan comes away, you’re left with a gorgeous cake topped with caramelized bananas that no one would ever guess is a healthier option. The cake is soft, moist, and plenty sweet. I devoured a slice with a cup of tea as an afternoon snack, and my dad inhaled three slices as dessert. It would be a fabulous, impressive brunch item too! Grab your bananas and get baking :) enjoy!
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Remember to #bakerita if you try the recipe!

Paleo Banana Upside Down Cake
Ingredients
- 4 tablespoons coconut oil, melted
- ½ cup coconut sugar
- 2 bananas, sliced
For the batter
- 1½ cups mashed banana, 3-4 bananas or 425 grams
- 3 eggs
- ⅓ cup 105g almond butter (or nut butter of choice)
- 3 tablespoons coconut oil, melted
- ⅓ cup 57g coconut flour
- ½ teaspoon cinnamon
- ¾ teaspoon baking soda
- ¾ teaspoon baking powder
- 1 teaspoon vanilla extract
- ¼ teaspoon sea salt
Instructions
- Preheat the oven to 350ºF. Grease a 9” springform pan and place on a rimmed baking sheet lined with parchment or foil.
- Combine the melted coconut oil and coconut sugar. Spread in the bottom of the prepared pan. Arrange the banana slices over the coconut sugar. Set aside while you prepare the batter.
- In a large bowl or mixer, combine the mashed bananas, eggs, coconut oil, vanilla extract and nut butter until fully combined.
- Add the coconut flour, cinnamon, baking soda, baking powder, and sea salt to the wet ingredients and mix well.
- Pour the batter into the prepared pan and spread it evenly.
- Bake in the preheated oven for about 40 minutes or until the cake is lightly golden brown. A toothpick inserted into the center should come out clean.
- Remove from oven and allow to cool on a wire rack for about 20 minutes, and then carefully flip out onto a cooling rack to finish cooling.
This post is sponsored by One Banana. As always, all opinions are entirely my own! Thanks for supporting the brands that support Bakerita! :)

Happy New Year, Rachel! I don’t judge you one bit for starting off with a cake…you’re a baking blog :D This is one gorgeous-looking cake, I need to try an upside down cake…so delicious looking!!
I’m a banana fanatic, and I love that you made a healthy cake where bananas are the star! This is so gorgeous, Rachel — I can’t wait to try it!
Ooh, you had me at ‘banana’, Rachel! But add in ‘upside down’ and I’m sold!! This looks so incredibly delicious, and what gorgeous photos! :)
Ha this looks a lot healthier than the cake I posted right after the new year. This looks drool worthy though, and I am loving how it is even acceptable to eat for breakfast.
This looks SO good! I am always looking for easy gluten free recipes to keep on hand for family events — definitely saving this one!
This looks delicious! I don’t have coconut flour though, would any gluten free flour work? I do have brown rice flour… Thoughts?
Thanks for the recipe ideas
Hi Ayssa. Coconut flour is pretty different than most other gluten-free flours because it has a much higher absorption rate. You would need to use a lot more of different kind of flour which would mess with the other ingredients in the recipe. I wouldn’t recommend using a different kind of flour here – thankfully, coconut flour can be found pretty cheaply on Amazon, or at most grocery stores. Trader Joe’s also sells it for cheap. Hope this helps!!
This is one beautiful cake!! I love that you are a rebel with the New Year salad, smoothie and detox recipes :p
Wow, what a pretty upside down cake! I can’t believe I’ve never had/made a banana upside down cake before, but I’m gonna have to fix that! As usual, I can’t believe how clean and healthy you made this cake! :)
This cake is flawless! I would definitely eat it for breakfast….and then lunch and dinner :) It’s so gorgeous and I love that it’s paleo too!
I am kind of obsessed with coconut sugar right now! I love the depth of flavor it adds! And this is a seriously impressive cake! My husband is obsessed with peanut butter and bananas, so I think I need to do this with peanut butter and surprise him!
This would be SO good with peanut butter, Annie! He’d love it :) enjoy!