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Protein Banana Cake Bars

Satisfy your banana bread craving & cake craving with these low calorie, Protein Banana Cake Bars! These are super light & fluffy and are topped with a perfect cream cheese frosting. One slice is only 120 calories and has 9 grams of protein!

This is a great recipe for when you need to use up those ripe bananas. This recipe required very simple ingredients that you most likely have at home already and only take 10 minutes to prepare. If you like this recipe, you will also love my Greek Yogurt Banana Bread.

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What You Will Need

For the Cake

  • One 11x7 Inch Glass Baking Dish - To bake your banana bars in.
  • Flour - I used 1 1/2 cups of all-purpose (since that is all I had on hand!), but oat flour works really awesome as well and it probably my preferred choice!
  • Vanilla Protein Powder - For some vanilla flavor and protein! My personal favorite is by the brand Prozis (either the zero diet whey vanilla or the natural vanilla whey isolate). You can actually use the code “KATIE10″ for 10% off at Prozis!
  • Granulated Sugar Substitute- I used 1/2 cup of Swerve, which is my go-to when it comes to sugar alternatives. Swerve is a zero-calorie, low-glycemic sweetener that measures cup-for-cup to sugar. It’s completely save and natural, with no artificial ingredients, preservatives or flavors. It is safe for diabetics and Keto approved. You can purchase Swerve off of Amazon here.
  • Salt - 1/2 teaspoon, for flavor.
  • Baking Soda - 1 teaspoon, to make the cake rise
  • Cinnamon & nutmeg - 1 teaspoon of cinnamon & 1/2 teaspoon of nutmeg, for flavor
  • Eggs- This is what helps makes the cake super fluffy and contributes to the protein content. You will need 2 large eggs.
  • Vanilla Extract - 1 teaspoon, for flavor.
  • Greek Yogurt - I used 1 cup of plain non-fat Greek yogurt. This is the key ingredient to getting the most moist & fluffy cake! It also adds more protein to the banana bars!
  • Bananas - The most important ingredient! You will need 3 mashed bananas.

For the Frosting

  • Cream Cheese - I used 4 ounces of low fat cream cheese to keep the fat & calories low. It's easiest to work with softened cream cheese.
  • Unsweetened Almond Milk- I used 2 tablespoons of a vanilla flavored one, but feel free to do a different flavor or even a different type of milk.
  • Vanilla Extract - For flavor.
  • Powdered Sugar Substitute - I used Swerve again for this! I used 2 tablespoons.
  • Vanilla Protein Powder - I used 45 grams of Prozis Zero Vanilla Whey Protein.
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How To Make It

  1. Preheat your oven to 350°F. Spray an 11x7 inch baking dish with nonstick spray.
  2. In a large mixing bowl, beat the egg whites, cream of tartar, and vanilla extract with a hand mixer until stiff peaks form.
  3. Using a rubber spatula, fold in your protein powder and stevia. Be sure to do this very gently! You do not want your egg whites to deflate too much.
  4. Place your cake batter in your spring foam pan and bake for 20 minutes.
  5. Once the cake pan is cool enough to touch, place it in the fridge to completely cool it.
  6. In a small mixing bowl, beat the cream cheese, sweetener, pudding mix, Greek yogurt, and almond milk with a hand mixer on low until well combined.
  7. Take the outer part of the spring foam pan off carefully and use the bottom of it as your platter.
  8. Using a rubber spatula, gently frost the cake. Cover the top and all sides.
  9. Top with fresh strawberries if desired. Slice the angel food cake into 8 slices and enjoy!

How To Store

Store your Protein Banana Cake Bars in an airtight container in the refrigerator for up to 5 days. You can also keep them in the original baking dish and cover that with plastic wrap in your fridge.

Do You Eat These Warm or Cold?

These are honestly amazing both ways. Personally, I like to warm them up a little in the microwave, but not too much to the point where the cream cheese frosting melts!

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banana cake protein bars
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I post all of my recipes on social media as well and you can stay up-to-date on what I am up to! Also, I love seeing people try my recipes! When make these, snap a picture and share it to your socials. Tag @cookingkatielady and #cookingkatielady so I can admire your masterpiece and share with others!

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Prep Time 10 mins
Cook Time 35 mins
Total Time 45 mins
Cooking Method:
Cuisine:
Courses: ,
Difficulty: Beginner
Servings: 15
Calories: 120 kcal
Description

Satisfy your banana bread craving & cake craving with these low calorie, Protein Banana Cake Bars! These are super light & fluffy and are topped with a perfect cream cheese frosting. One slice is only 120 calories and has 9 grams of protein!

Ingredients
  • 1½ cup all purpose flour (oat works great too!)
  • ½ cup granulated Swerve (or other zero calorie sugar substitute of choice)
  • 1 tsp baking soda
  • ½ tsp salt
  • 1 tsp cinnamon
  • ½ tsp nutmeg
  • 2 eggs (large)
  • 1 cup Greek yogurt (plain nonfat)
  • 3 bananas (mashed)
  • 1 tsp vanilla extract
  • 2 tbsp brown swerve
    • For The Frosting
  • 4 oz low fat cream cheese
  • 2 tbsp almond milk (unsweetened vanilla; more or less, depending on how thick you like your frosting)
  • 2 tbsp confectioners Swerve
  • 45 g vanilla protein powder (Use the code KATIE10 for 10% off Prozis protein powder!)
Instructions
  1. 1

    Preheat your oven to 350°F. Spray an 11x7 glass baking dish with non-stick spray.

  2. 2

    In a large mixing bowl, whisk together all of the dry ingredients.

  3. 3

    Add in the eggs, Greek yogurt, mashed banana, and vanilla extract. Whisk until fully incorporated and there are no more lumps.

  4. 4

    Pour half the batter into your glass baking dish. Sprinkle the brown Swerve over the batter.

  5. 5

    Pour the remaining batter on top and make sure it is spread around evenly.

  6. 6

    Bake for 35 minutes, or until the tops are browned and a toothpick comes out clean.

  7. 7

    While the banana bars are baking, make your frosting by combining the cream cheese, almond milk, vanilla extract, and confectioners sugar substitute.

  8. 8

    Allow the banana bars to cool enough to where your frosting won't melt when you spread it on top. Evenly spread the frosting with a knife and cut into 15 slices.

  9. 9

    Serve & enjoy!

Nutrition Facts

Servings 15

Amount Per Serving
Calories 120kcal
% Daily Value *
Total Fat 2.5g4%
Saturated Fat 1.6g8%
Cholesterol 35mg12%
Sodium 95mg4%
Total Carbohydrate 16g6%
Dietary Fiber 0.5g2%
Sugars 3g
Protein 9g18%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.

Note

Did you make this recipe?

The next time you make it, snap a picture, and share it to your socials. Tag @cookingkatielady and #cookingkatielady so I can admire your masterpiece and share with others!:)

Please note that my nutrition label is approximate and can have slight rounding.

Keywords: banana, cake, high protein
Read it online: https://cookingkatielady.com/recipe/protein-banana-cake-bars/