Flavorful Banana Protein Blondies topped with Protein Frosting – a healthy dessert to satisfy the cravings! Banana blondies use protein powder and are low sugar, and low fat too!

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Frosted blondies really are the new jam – so so unexpectedly good. Don’t get me wrong; These banana blondies were amazing as they are, but with the protein frosting on top? Just a whole other level!

All clean ingredients in these protein banana blondies here though, so great recipe for the sugar cravings.

Ingredients for Banana Protein Blondies

These banana protein blondies are made with a few healthy ingredients, and have no sugar or butter in here.

Mashed Banana
Vanilla Protein Powder needed for high protein blondies and also replaces most of the ‘sugar’.
I used the whey-casein Vanilla protein powder from Quest Nutrition.
Unflavored Protein Powder to replace some of the flour (and carbs) in the recipe for a slightly low calorie protein blondie. Quest Nutrition whey-casein again here.
Whole Wheat Pastry Flour
1:1 Zero Calorie Brown Sugar Substitute – I use Lakanto, to keep this recipe sugar free; (code HAYLSKITCHEN for a discount here too.
Peanut Butter Powder, also known as Powdered Peanut Butter. I use Lakanto for a sugar free version (the code HAYLSKITCHEN gives you a discount here too)
Non-fat Greek Yogurt contributes to the oil-free part of these high protein low calorie protein blondies since it adds the moisture, and also extra protein
Unsweetened Almond Milk
Almond Butter – for the rich caramel blondie flavor.
Baking Soda

And then for the protein frosting:

Non-fat Greek Yogurt
Vanilla Protein Powder – Quest Nutrition again here
A bit of Almond Butter

Tips for perfect Banana Protein Powder Blondies

This banana blondie recipe with protein powder is really easy to make, and here’s some pointers to get it right.

Use completely ripened mashed banana since it is sweet and you won’t need to add as much sweetener.

Use room temperature yogurt;
This is so the wet ingredients and dry ingredients can mix well.

Room temperature drippy almond butter so it mixes well too and does not clump.

Don’t over-mix the batter!
Make sure you gently fold the dry mix into the wet to combine them.
If you over-mix it, the protein powder will make the banana bread blondies tough, dense and gummy.

Taste the batter and see if you need some extra sweetener. I’d recommend using stevia powder to maintain the consistency of the batter and have banana bread blondie recipe with no added sugar.

How to store Banana Bread Protein Blondies?

This banana bread protein blondie recipe keeps well for a meal prep dessert or post workout snack and is freezer friendly too!

Store banana protein powder blondies at room temperature in an airtight container for 1-2 days or in the fridge for a week.

To freeze healthy banana blondies, individually wrap each protein blondie square in plastic wrap and place in freezer-safe zipper bags or air tight container; The banana blondie bars should keep for 2-3 months.

Alternatives for Healthy Banana Blondies

I made these high protein healthy banana blondies with frosting with this particular brand of protein powder, and know they turn out amazing this way.

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I do have some alternatives you can try, but I haven’t testing them all so I can’t say how your recipe might turn out. I’d love to know if you do!

Whole Wheat Pastry Flour: All purpose flour, 1:1 gluten free baking flour; The same amount by weight
1:1 Zero Calorie Sugar Replacement: Regular confectioners sugar or coconut sugar (this won’t be sugar free though, and also higher in calories)
Greek Yogurt: Coconut Yogurt
Almond Milk: Any other milk
Almond Butter: Cashew Butter, Sunflower Seed Butter, Hazelnut Butter or even Tahini; Peanut butter might give a strong flavor, so I wound’t recommend it.

To make Vegan Banana Blondies

For a high protein Vegan banana blondies recipe, use coconut yogurt in place of Greek Yogurt also a plant based protein powder.

I haven’t tried pea protein or other plant based ones, so I can’t say how those would work here. You might need extra sweetener.

Gluten Free Banana Bread Blondies

To make these healthy banana bread blondies gluten free, use a gluten free oat flour.

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