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5 from 12 votes
Home By Course Desserts Brownies & Blondies

Banana Blondies with Cinnamon Brown Butter Frosting

Turn your ripe bananas into these incredibly delicious Banana Blondies with Cinnamon Brown Butter Frosting. You'll never know they're lightened up thanks to their bold and perfectly sweet flavor!

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By: Lauren published: May. 25, 2022 updated: Apr. 18, 2024 15 Comments

This post may contain affiliate links. Please read my disclosure policy.

Banana blondies on parchment paper.
Contents hide
About This Recipe
Why You’ll Love These Banana Blondies with Cinnamon Brown Butter Frosting
Ingredients and Substitutions
How To Make
FAQ: Banana Blondies with Cinnamon Brown Butter Frosting
More Healthy Blondie Recipes To Try
Banana Blondies with Cinnamon Brown Butter Frosting
MyFitnessPal Entry
Did You Make This?

About This Recipe

Got ripe bananas? These Banana Blondies with Cinnamon Brown Butter Frosting are about to become your new favorite way to use them.

Each of these blondies are perfectly sweet and spiced and have the most incredible soft, moist, melt-in-your mouth texture!

But the real star of the show here is the cinnamon brown butter frosting! It’s made by browning butter on a saucepan and then mixing it with cream cheese, sweetening it with confectioners sugar, and flavoring it with cinnamon, vanilla and touch of salt. Yes, it’s that easy!

And if you love these healthy banana blondies, check out my Carrot Cake Blondies with Cream Cheese Frosting, Chickpea Blondies or my favorite Cake Batter Oreo Blondies!

Banana blondies on parchment paper.

Why You’ll Love These Banana Blondies with Cinnamon Brown Butter Frosting

  • So incredibly moist, dense and flavorful! 😍
  • They’re lightened up but taste like an indulgent treat.
  • Topped with SINFUL cinnamon brown butter frosting!
  • Great to make any time of year.
  • Less than 200 calories per piece!
  • Helps you use up those ripe bananas on your counter!

Ingredients and Substitutions

  • Bananas – The riper, the better! If you need to ripen your bananas quickly, you can use this quick trick here!
  • Greek yogurt – Adds such a moist texture.
  • Brown sugar – I used Swerve Brown Sugar.
  • Milk – I used unsweetened almond milk, but any milk works.
  • Baking essentials – We’ll use vanilla extract, baking powder, baking soda, cinnamon, canola oil, and salt.
  • Flour – I used all-purpose flour. Using almond or oat flour will change the flavor/texture, but they would still work. If you wish to make gluten-free blondies, try Bob Red Mill’s 1:1 Gluten-Free Flour.
  • Protein powder – I used PEScience Vanilla. Keep in mind that not all protein powders bake the same, so if you use a different kind, use a similar whey + casein blend, not just a whey protein powder. Code LaurenFitFoodie will save you 15% on PEScience products.
  • Cream cheese – I used 1/3 reduced fat. Full fat, fat-free or Neufchatel cream cheese work, too.
  • Unsalted butter – We’ll brown this in a pan for incredible flavor!
  • Confectioners sugar – I used Swerve Confectioners Sugar.
Banana blondies stacked vertically.

How To Make

For The Blondies:

  1. Preheat the oven to 325°F. Line a 8×8-inch baking pan with parchment paper or spray with nonstick cooking spray.
  2. In a medium-sized bowl, add the flour, protein powder, baking powder, baking soda, and salt. Stir to combine.
  3. In a large bowl, add the bananas and mash them well. Then, add the yogurt, oil, brown sugar, milk, and vanilla. Combine with a hand or stand mixer.
  4. Pour the batter into the prepared dish. Bake for 25-30 minutes or until a toothpick inserted in the center comes out mostly clean. We want it to be slightly gooey for a more moist texture!
  5. Let blondies cool to room temperature before adding frosting. 

For The Frosting:

While the blondies are baking, make the cinnamon brown butter frosting:

  1. Start by melting the butter in a saucepan over medium heat, stirring occasionally. Once melted, the butter will begin to foam. Keep stirring occasionally. After 5-8 minutes, the butter will begin browning. You’ll notice lightly browned specks begin to form at the bottom of the pan and it will have a nutty aroma. Once browned, remove from heat and pour into a heat-proof bowl. Refrigerate until solid.
  2. In a large bowl, beat cream cheese and butter together on high speed using a handheld or stand mixer fitted with a paddle or whisk attachment.
  3. Add cinnamon, salt, vanilla and confectioners sugar. Beat on low speed for 1 minute or until everything is combined. 
  4. Once blondies have cooled, evenly cover the top with frosting. Cover and store in the fridge until ready to serve. They’ll taste best if you let them sit overnight!
Banana Blondies with Cinnamon Brown Butter Frosting.

FAQ: Banana Blondies with Cinnamon Brown Butter Frosting

Why do we need to brown the butter?

Because it creates such incredible flavor! Browning the butter creates a warm, nutty flavor that tastes incredible with these banana blondies. Trust me, you won’t regret it!

Can I freeze these blondies?

Yes, you can. But freeze them without the frosting. Let blondies cool to room temperature and then cut into bars. Wrap the bars individually in parchment paper, wax paper, or aluminum foil. Then, store in a Ziploc bag. To prevent freezer burn, make sure to remove as much air as possible. If stored properly, bars will stay fresh for 6 months. Frost after you defrost and are ready to eat.

Could I use a different frosting?

Absolutely. Use whatever you like. I think chocolate, vanilla, or plain cream cheese frosting would taste great.

More Healthy Blondie Recipes To Try

Apple blondies on parchment paper.

Apple Blondies with Cinnamon Maple Glaze

Zoomed in view of healthy carrot cake blondies cut into bars.

Healthy Carrot Cake Blondies with Cream Cheese Frosting

Two Cake Batter Oreo Blondies stacked on top of each other with a bite taken out of the top one.

The BEST Healthy Cake Batter Oreo Protein Blondies

S'mores blondie bars on parchment paper.

Easy S’mores Protein Blondie Bars

Did you make this? If you snap a photo, please be sure leave a review, tag me on Instagram or TikTok at @LaurenFitFoodie or hashtag #LaurenFitFoodie so I can see your creations!

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5 from 12 votes

Banana Blondies with Cinnamon Brown Butter Frosting

? Gluten-Free ? Low Carb ? Macro-friendly
Turn your ripe bananas into these incredibly delicious Banana Blondies with Cinnamon Brown Butter Frosting. You'll never know they're lightened up thanks to their bold and perfectly sweet flavor!
Yield: 12
Prep: 15 minutes mins
Cook: 25 minutes mins
Total: 40 minutes mins
Calories: 159kcal
Protein: 6.9g
Fat: 7.9g
Carbs: 15g

Ingredients

Banana Blondies

  • 2 medium bananas (200g) the riper the better!
  • 3/4 cup plain nonfat Greek yogurt (170g)
  • 2 Tbsp canola oil (30g) or other oil of choice
  • 1/4 cup brown sugar sweetener (48g) I used Swerve
  • 2 Tbsp unsweetened almond milk (30g) or milk of choice
  • 1 Tbsp vanilla extract
  • 1.25 cup all-purpose flour (150g)
  • 1/4 cup vanilla protein powder (31g) I used PEScience
  • 1.5 tsp baking powder
  • 1/4 tsp baking soda
  • Pinch of salt

Cinnamon Brown Butter Frosting

  • 8 oz. 1/3 less fat cream cheese (226g)
  • 2 Tbsp unsalted butter (28g)
  • 1 tsp cinnamon
  • 1/4 tsp salt
  • 1 tsp pure vanilla extract
  • 1/2 cup confectioners sweetener (72g) I used Swerve

Before You Begin! If you make this, please leave a review and rating letting us know how you liked this recipe! This helps our business thrive & continue providing free recipes. Scroll for macros and MyFitnessPal code.

Instructions

For the Banana Blondies:

  • Preheat the oven to 325 degrees F. Line a 8×8-inch baking pan with parchment paper or spray with nonstick cooking spray.
  • In a medium-sized bowl, add the flour, protein powder, baking powder, baking soda, and salt; stir to combine.
  • In a large bowl, add the bananas and mash them well. Then add the yogurt, oil, brown sugar, milk and vanilla. Using a hand or stand mixer, mix to combine. Add the dry ingredients and mix again until incorporated. 
  • Pour the batter into the prepared dish. Bake for 25-30 minutes, or until a toothpick inserted in the center comes out mostly clean (a toothpick inserted in the center should still be slightly gooey (for a more moist texture!)
  • Let cool to room temperature before adding frosting. 

For the Brown Butter Frosting: 

  • While the blondies are baking, make the brown sugar frosting.
  • Start by melting the butter in a saucepan over medium heat, stirring occasionally. Once melted, the butter will begin to foam. Keep stirring occasionally. After 5-8 minutes, the butter will begin browning– you’ll notice lightly browned specks begin to form at the bottom of the pan and it will have a nutty aroma. Once browned, remove from heat, and pour into a heat-proof bowl. Refrigerate until solid.
  • In a large bowl using a handheld or stand mixer fitted with a paddle or whisk attachment, beat the cream cheese and butter together on high speed until smooth. 
  • Add the cinnamon, salt, vanilla and confectioners sugar. Beat on low speed for 1 minute or until everything is combined well. 
  • Once blondies have cooled, evenly cover the top with frosting. Cover and store in the fridge until ready to serve. Best if let sit overnight!

Nutrition Information

Serving: 77g, Calories: 159kcal (8%), Carbohydrates: 15g (5%), Protein: 6.9g (14%), Fat: 7.9g (12%), Saturated Fat: 3.7g (23%), Fiber: 0.9g (4%), Sugar: 3.9g (4%)

Nutrition is hand-calculated and accurate. No autocalulations! However, note that values can vary based on the brands you use and if you substitute ingredients.

MyFitnessPal Entry

LFF Banana Blondies with Brown Butter Frosting

© Author: Lauren

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Lauren

Lauren

Lauren lives with her husband, Simon and two dogs, Finley and Cookie, in the Carolina’s. She has college degrees in Nursing and Exercise Science, is a NASM certified trainer and spent many years as a macro coach before transitioning to full time blogging. She loves staying active, being creative and recreating her favorite comfort food dishes into healthier, lightened up versions. Desserts are her speciality!

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I’m Lauren, a food lover sharing healthy, macro-friendly recipes that taste good and you can feel good about eating. Here you’ll find everything from breakfasts to easy dinners to lightened up desserts because desserts are absolutely mandatory around here!

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