These Banana Bread Bars with Fluffy Butter Icing are the perfect sweet treat for any occasion! Made in one bowl with fresh bananas, and topped with the softest butter frosting!
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If there’s one thing I love to bake with, it’s bananas. I’ve shared so many of my favourite banana recipes with you already, like these Best Ever Banana Muffins or these Banana Layer Cake with Peanut Butter Frosting, and these Banana Bread Bars with Fluffy Butter Icing are another one of my favourite ways to use up over-ripe bananas, and you’re going to LOVE them!
These Banana Bread Bars with Fluffy Butter Icing are SO easy to make in just one bowl with super basic ingredients, and they’re beautifully dense and moist. And the fluffy butter icing is SO smooth and creamy, you’ll never believe the secret ingredient that takes this frosting to the next level!!
Like the look of this recipe? You’ll love this Chocolate Layer Cake or this Classic Carrot Cake!
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I hope you enjoyed this recipe! Let me know in the comments below, what’s your favourite way to use up ripe bananas? I’d love to know!
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Best Ever Blueberry Ricotta Coffee Cake
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Apple Carrot Ginger Muffins
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Banana Bread Bars with Fluffy Butter Icing
Ingredients
- 4 medium ripe bananas
- 1 1/4 cups white sugar
- 1 cup fat free plain Greek yogurt
- 2 eggs
- 1/2 cup vegetable oil
- 1 teaspoon vanilla extract
- 2 cups all purpose flour
- 1 teaspoon baking soda
- 1/2 teaspoons salt
- 1 tablespoon butter (for greasing the pan)
For the frosting:
- 1 cup unsalted butter at room temperature
- 1 1/2 cups icing sugar
- 2 tablespoons whole milk
- 2 tablespoons boiling water
- a few drops of vanilla extract optional
- cinnamon for dusting, optional
Instructions
- Preheat your oven to 375 degrees Fahrenheit.
- Prepare a large rimmed baking sheet or jelly roll pan by greasing it with some butter and lining it with parchment paper. It also helps to grease on top of the parchment paper so the bars release easily.
- Mash the bananas in a large bowl. It's easy enough to use a fork for this job, but you can also use a potato masher if you'd rather do that.
- Add the sugar, Greek yogurt, eggs, oil and vanilla to the bowl with the bananas and mix these ingredients together with a wooden spoon until they're well combined.
- In a separate bowl, combine the flour, baking soda and salt with a wire whisk. Dump the dry ingredients into the wet ingredients and mix just until everything is combined and you can't see any streaks of flour.
- Pour the batter into the prepared pan and add it to the oven. Let it bake at 375 degrees Fahrenheit for about 22-25 minutes, or until the top is a nice golden brown and it passes the toothpick test (insert a toothpick into the centre and if it comes out clean, it's done!).
- Let the banana bread cool in the pan until it is cool completely. It helps to place the pan on a wire rack while it's cooling.
- While you're waiting for the banana bread to cool, you can make the frosting. Add the butter to the bowl of your stand mixer fitted with the paddle attachment. Whip the butter on high speed for about 2 minutes, scraping down the sides of the bowl every 30 seconds or so to make sure the butter is whipped evenly.
- While the butter is whipping, it's a good idea to boil some water in your kettle. You don't need much, only 2 tbsp, but you must add it right after it boils so it's a good idea to get it started now.
- Add the icing sugar and the milk at the same time and combine these ingredients with the butter, first on low speed and then on high speed until everything is combined well and the mixture is completely smooth (about 3 minutes). Be sure to scrape down the sides of the bowl every 30 seconds or so to make sure all the ingredients are incorporated.
- Once the kettle has boiled, add the boiling water very slowly as the mixer is on low speed. Once all the water has been added, turn the mixer to high speed and let the frosting whip for about 3 more minutes or until the frosting becomes more pale in colour and achieves an extremely smooth consistency.
- Spread the frosting over the banana bread using an offset spatula. Dust with cinnamon (optional), cut into squares and serve!
Notes
Nutrition
This recipe is adapted from The Girl Who Ate Everything, but the frosting recipe is an old one of my grandmother’s.
tina roberge says
These Banana Bars look amazing!
The Busy Baker says
Thanks so much!!😊
That Square Plate says
Always looking for ways to use overripe bananas — we tend to have them every once in a while! These look delish & I love the icing on top. Yum!
The Busy Baker says
Thanks!
Rose Molloy says
I love banana anything, and these look and sound amazing!
The Busy Baker says
Thanks so much!
Tracy Koslicki says
These look perfect!
The Busy Baker says
Thank you!
Brian says
I am really not a banana kinda guy but my wife loves them so may have to break out my baking 'pinny' and see if I can't score some brownie points 😀
The Busy Baker says
She’ll like this recipe! 😊
April Anderson says
Old family recipes are the best, right? I bet the frosting is great and the bars don't look too bad either 😉
The Busy Baker says
They are! 😊 Thanks!
Homemade Food Junkie says
Boy, these bars looks so pretty! I love that old fashioned frosting. Nothing like Grandmas old recipes!
The Busy Baker says
Thanks so much!
Cathy Holm says
What is icing sugar?
Chrissie says
Hi Cathy! It's powdered sugar. Sorry, I'm from Canada and we call powdered sugar icing sugar up here!!
Kimberly says
Those look so good and the texture looks perfect!
Chrissie says
Thanks!
Catalina says
These bars will be great to have on hand this week! These need to happen this week!
The Busy Baker says
Hope you enjoyed them!!
Jade Manning says
The perfect sweet treat!!
The Busy Baker says
Thanks!
Lora says
I need to make banana bread bars when our bananas ripen. Your bars look fantastic!!
Chrissie says
Thanks! You’ll love them! 🙂
Jackie says
I have pinned this recipe and will be making it very soon! I can’t wait to share with the family.
Chrissie says
Thanks! You’ll love it!
Deseree says
These sound amazing! My family would love these and I am sure they would go down in one sitting.
Chrissie says
Thanks so much!
Erin | Dinners,Dishes and Dessert says
We are in love with these right now!
Chrissie says
Thanks! We are too 🙂
Beth Pierce says
What a perfectly light and fluffy dessert! Can’t wait to give this a try this weekend! Delicious!
The Busy Baker says
So glad you like the recipe!! 🙂
Kim Seghers says
This dessert looks so yummy! I need to try it soon. My kids would love it.
The Busy Baker says
Thanks so much! Also tell us how it went!😊
Lora says
A perfect after school snack! So easy to make!!
The Busy Baker says
Thanks for your comment!😊
Melanie Bauer says
Looks extremely yummy! Definitely making this. such a great treat!
The Busy Baker says
Thank you!!Let us know how it goes😊
Erin | Dinners,Dishes and Dessert says
I’m drooling this is everything I love!
The Busy Baker says
😄I know, it’s a great recipe and they’re SO yummy!
Vik says
My mouth is watering just thinking about this, so delicious! The perfect tasty snack
The Busy Baker says
Thank you so much!!😊