Thick, creamy, and practically indulgent. This Banana Bread Protein Smoothie tastes like your favorite, rich banana bread blended into a sippable form, but is really packed with nutrients and protein that’ll make you feel good from the inside out.

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Peanut Butter Banana Protein Smoothie
If you know me, you know I’m a BIGGG smoothie girl. Something a little sweet, but packed with so much nutrients and protein - sign me up!!
I have plenty of smoothie recipes on my blog and lately, I’ve loved leaning into the more dessert-like recipes like this Mint Chocolate Smoothie that reminds me of mint chip ice cream, or this Chocolate Cherry Smoothie that’s indeed a fan favorite.
And now this new Banana Bread Protein Smoothie is just another absolutely delicious and decadent tasting treat to add to the collection. It’s super thick thanks to the addition of rolled oats, which will also bring out the rich flavors of actual banana bread.
I love this smoothie because of how satisfying it is, too. There’s 10 g fiber and 44 g protein in this recipe, which keeps me full and satiated for hours! It’s the perfect breakfast on-the-go, post workout snack, or afternoon treat.
Recipe Ingredients
- Frozen Banana - Super ripe bananas will make your smoothie sweeter. I let them get really spotty before freezing. If your bananas are more on the yellow/green side, you may want to add a tbsp of maple syrup or bit of brown sugar sweetness.
- Rolled Oats - Oats create the bread-like taste. If the slightly grainy texture rolled oats add to the smoothie just isn't for you, use oat flour.
- Protein Powder - Clean Simple Eats Vanilla Protein Powder is my favorite whey protein powder (code: APAIGE10 saves you $$). Clean Simple Eats also has a Bananas Foster or Snickerdoodle that I think would be amazing in this smoothie.
- Milk - Any milk will do. I used Fairlife Skim for extra protein, but have also enjoyed this recipe with unsweetened almond milk.
- PB2 - I personally like to make the PB2 according to package instructions with the water before blending so it blends smoother, but if you’re short on time though, just toss it all in.
- Ground Cinnamon - A warming spice and banana bread necessity.
See the recipe card below for a full list of ingredients and measurements.
Substitutions and Variations
- Want to sneak in some veggies? Use only 3 ice cubes and add in ½ cup of frozen riced cauliflower. You can’t even taste it!
- For a richer smoothie: Use a regular nut butter (peanut butter, almond butter, or cashew butter are my favorites) instead of the PB2. Adding OatHaus Granola Butter would also be decadent (code COURTNEY15 saves you $$) .
- Whatever banana bread variations you’d try, do it with this smoothie, too!
- Chocolate Banana Bread: Add 2 tbsp of cocoa or cacao powder.
- Zucchini Banana Bread: Add ¼-½ cup shredded zucchini.
- Blueberry Banana Bread: Throw in a handful of blueberries.
- Banana Nut Bread: Directly in the blender, or as topping, add any nuts or seeds you wish! Pecans, walnuts, pistachios, almonds, chia seeds, etc.
How to Make This Recipe
1. Add all smoothie ingredients to a high-speed blender.
2. Blend together for 30-45 seconds, until smooth throughout.
3. Divide between two glasses, add your favorite toppings and enjoy!
Expert Tips
- It may seem obvious, but don’t under-blend your smoothie. You don’t want any large ice chunks floating in your smoothie that will melt and water down the treat while you drink it.
- Layer your ingredients so the PB2 and protein powder are away from the blade of the blender. Direct contact at the beginning of blending may cause a burnt taste.
- For an even creamier smoothie, make milk cubes and use in place of the ice. You can use almond milk, regular milk, or full fat coconut milk for a super creamy smoothie. Adding a bit of greek yogurt will also add to the creaminess and add a few grams of protein, too.
Recipe FAQs
No. I’m definitely not telling you to first bake a quick bread loaf and THEN make a smoothie. Smoothies are meant to be quick and simple, so there isn’t any traditional banana bread in this smoothie, just similar flavors. That said, although I haven’t tried it, but I think skipping the rolled oats in the recipe and adding a slice of banana bread to the blender could be absolutely decadent.
This could be a great way to utilize a loaf when it’s past its prime - potentially on the third or fourth day after baking when it isn’t as fresh.
You will need a high powered blender and then follow the recipe as is but use just use 2-3 tablespoons of almond milk. This will thicken up the smoothie and make it more spoonable. It may take a little longer to blend thoroughly. To thicken your smoothie even more, try adding ½ tsp of xanthan gum.
On this Banana Bread Smoothie, I suggest toppings that you’d eat with your banana bread. A drizzle of nut butter, sliced banana, chopped nuts (almonds, walnuts, pecans), chocolate chips or chocolate drizzle.
More Recipes You'll Love
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Recipe
Banana Bread Protein Smoothie Recipe
Equipment
- High Speed Blender
- measuring cups / spoons
- serving glasses
Ingredients
- 1 frozen banana
- ¼ cup Old Fashioned rolled oats
- 1 scoop vanilla protein powder, I used CleanSimpleEats
- 1 cup milk, I used Fairlife Skim
- 2 tbsp PB2 peanut butter powder
- ½ tsp ground cinnamon
- 6 ice cubes
- ½ tsp vanilla extract, optional
Optional Toppings
- cookie dough chunks
- chocolate chips or melted chocolate
- banana slices
- melted chocolate
- chopped nuts
Instructions
- Add all smoothie ingredients to a high-speed blender.
- Blend together for 30-45 seconds, until smooth throughout.
- Divide between two glasses, add your favorite toppings and enjoy!
Nutrition
Video
Notes
Looking for this in MyFitnessPal?
If you're using MyFitnessPal, search 'A Paige Of Positivity' and find Banana Bread Protein Smoothie calories and nutrition facts. Disclaimer: for most accurate macronutrients and caloric breakdown, it is recommended that you input each ingredient into your MyFitnessPal food diary.
I’d love to hear your thoughts in the comments below. It’s my passion to create dishes that can be shared with others. Tell me something you loved or just say hi!
Courtney Paige says
It's almost like I put a piece of banana bread in my blender and drank it -- TASTY STUFF!
Sydney Van Acker says
I had a bit of banana bread leftover from a few days prior and crumbled that on top. This smoothie was insane!!