5 from 6 votes

Peanut Butter Cold Brew Smoothie

 August 29, 2020

Get your morning coffee in with this delicious healthy peanut butter cold brew smoothie recipe made with frozen banana, peanut butter, frozen cauliflower (YUP, YOU READ THAT RIGHT), coffee, and lots of cacao, for the most delicious protein-packed smoothie around! It also happens to be a fantastic choice for a post workout smoothie, designed to replenish your energy reserves and rebuild those muscles!

When I initially shared this smoothie recipe on my Instagram stories, I was blown away by the number of DM’s I received asked for specific measurements and telling me how excited you were to recreate it for yourselves. So I thought, since this happens to be the smoothie that I drink almost every single day, it deserves a permanent home on my blog. That way you can come here and refer back to it any time you want!

And if you are into smoothies as much as I am, another one you will become obsessed with is my Snickerdoodle Tahini Smoothie. It is insane.


I know some of you are trying to reduce your sugar intake by cutting out bananas from your diet. Honestly, I would simply like to remind you that bananas are a fantastic natural source of sugar that will fuel your body and your workouts. If you are trying to limit sugar (I GET THAT), perhaps focus on limiting refined sugars. Refined sugars can cause unnecessary spikes in your blood-sugar levels, and they are highly processed, providing little to no nutritional value. Natural sugars, on the other hand? A great source of energy.

This peanut butter cold brew smoothie recipe happens to be both vegan and dairy free, making it a great choice for just about anyone plus there’s no sweeteners added. Yep, that’s right, this smoothie is sweet enough on its own thanks to the banana so there isn’t any need to add unnecessary sweeteners. Just the banana and cauliflower. And if you like a little extra sweetness, use a vanilla protein powder, and muah, the perfect smoothie!

Peanut Butter Cold Brew Smoothie Ingredients

Here are ingredients you’ll need to make my peanut butter cold brew smoothie. Of course, you can feel free to change things up to your liking, but in general, I suggest trying to stick to the ratios listed in the recipe to ensure that the smoothie turns out thick and creamy.

  • Coffee: although I decided to label this recipe as being a “cold brew,” the reality is that it’s just coffee. But cold brew sounds way cooler, so we are going to go with that. I make a large pot of coffee every morning and I just save the extra coffee so that I have enough to make this smoothie. So you don’t need to brew an extra pot of coffee to make this recipe, just make EXTRA when you brew your daily pot. Another option is to simply purchase a cold brew coffee from your local grocery store to use in this recipe!
  • Almond milk (or milk of choice): feel free to use any milk you’d like in this smoothie recipe. Some fun, alternative options include coconut milk, oat milk, hemp milk, and soy milk, and you can even use regular milk for a boost of protein.
  • Frozen banana: I always use frozen bananas in my smoothies! They are packed with potassium and such a great source of natural energy. Want to omit it? Go for it. Substitute for anything you like!
  • Peanut butter: I am a self proclaimed peanut butter-holic. But if you avoid peanuts as part of man allergy or follow a paleo diet, then please feel free to substitute almond butter, cashew butter, sunflower seed butter or even GRANOLA BUTTER!
  • Frozen cauliflower: I know what some of you are thinking, why in the world would you put cauliflower in your smoothie? I’ll tell you. One, it doesn’t taste like anything – it’s tasteless. But, it’s a very easy way to sneak in your daily servings of veggies, and it adds so much creaminess to your recipes — they get perfectly thick! If you don’t have frozen cauliflower, other great alternatives are frozen butternut squash and frozen zucchini. And yes, I am talking about RAW veggies. You don’t need to cook them first.
  • Cocoa powder or cacao powder: please feel free to use these interchangeably, but the one thing I would suggest is to always purchase unsweetened, because this is one area where the extra sweetness if not necessary.
  • Ground flaxseed meal: I listed this as an optional ingredient, but in my book, it is a must. Ground flaxseed meal is a great little boost of fiber and minerals. And if you are a nursing mama, it’s even better for you, as it’s been known to help increase milk supply.
  • Protein powder: Ahhh, protein powder. Everyone has their own taste in protein powder, some people opting for sweeter versions and others running away from protein powders that have any added sweetness. What ever your preference, I do recommend using SOMETHING, because smoothies are the perfect opportunity to get extra protein in with little effort. You can do plain collagen, flavored collagen, plant based protein powders, etc. I always love this recipe with a plant-based vanilla protein powder that’s NOT too sweet. This one is my all time favorite these days!
peanut butter cold brew smoothie

Tips for making the creamiest smoothiest smoothies

  • Make sure you use frozen fruits and veggies. Why? Because you want to have a perfectly cold smoothie. If you must use room temp fruits and veggies, be sure to add ice cubes to the smoothie. Do what you can, don’t stress over it. I always keep a silicone Stasher bag full of frozen bananas in my fridge just for smoothies!
  • Don’t be afraid to add more liquid if your smoothie is too thick or won’t fully blend. High powered blenders tend to blend frozen fruit and veggies much better, so if you have a regular or personal size blender, you may need to add more milk. And of course, most high speed blenders come with a blending stick, which helps tremendously when making smoothies.
  • I recommend starting your blender on low speed, then gradually increasing to high speed. Doing it this way, vs. starting on high speed, is the best way to ensure creaminess!
  • Don’t get stuck to recipes. Making a smoothie that is perfect for your own tastebuds is a personal thing. Mix and match ingredients. For instance, not a protein powder person? That’s ok. Perhaps add some chia seeds or hemp hearts for extra protein, fiber, and to keep you feeling full all morning.

Okay, enough rambling from me. Go make the recipe. I hope you guys love it, and if you make it, be sure to leave a comment for me below and tag me on Instagram so I can repost!



5 from 6 votes
Nicole Modic
SERVES 1 smoothie
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  • ¾ cup coffee cooled
  • ¾ cup almond milk or any non-dairy milk
  • 1 frozen banana
  • 2 tablespoons peanut butter
  • ¾ cups frozen cauliflower
  • 1 tablespoon unsweetened cocoa powder
  • 1 tablespoon ground flaxseed optional
  • 1 scoop vanilla protein powder or any protein powder


  • Blend all of the ingredients together in a high speed blender for about 1-2 minutes until all ingredients are combined. You may have to a little more almond milk, depending on how thick you like your smoothies.
  • Enjoy!

Did you make this recipe?

I’d love to see what you made – tag @kalejunkie
in your posts and I’ll re-share!



Rate + Review

5 from 6 votes (2 ratings without comment)

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  1. 5 stars
    So delicious – I love coffee and I love smoothies – this is a keeper recipe for sure.
    I made it this morning for breakfast and I was not hungry until lunch.
    THANK YOU for another great smoothie recipe @kalejunkie

    • Woohoo! You are SO welcome, Agnes! Thank you so much for making this recipe, and for leaving such a kind review!

    • YAY! I am so happy that you love his recipe, Christin! Thank you so much for making it, and for all of your kind reviews!

  2. 5 stars
    Okay i was super nervous about making this but oh my goodness it is wonderful!!! Thank you for sharing! Plus I’d much rather drink my vegetables and get it over with. I already have tomorrow’s riced cauliflower in the freezer to make again.

    • YAY! Michelle, I am so beyond thrilled to hear that! And I too would rather drink my vegetables 😉 Thank you so much for trusting me with this recipe, and for leaving such a kind review!

  3. I know I can always count on you to make the BEST smoothies! I’ve been telling all of my friends! This smoothie is DELICIOUS!! So filling and an easy way to make my morning coffee healthy…HA!

    • Heidi, I am SO honored!! Thank you for making my smoothie recipes, for enjoying them so much, and for leaving such a sweet review!!

  4. 5 stars
    One of my FAVORITE smoothies to make! Dessert for breakfast, so filling, easy to make, and perfect for when I’m having that peanut butter banana craving!!!

  5. This is amazing! Normally I’m not the biggest smoothie fan, but this is legit delicious! The coffee really adds to the flavor.

  6. 5 stars
    AMAZING 🤩 I used frozen riced cauliflower and my half cup of coffee that I had let get cold and it was PERFECT. Thank you!!