Biscoff Protein Smoothie (52g Protein, 5 Minutes)

This Biscoff Protein Smoothie tastes like a rich, caramel milkshake with a whopping 52 grams of protein and only 400 calories. Ready in 5 minutes, this can be enjoyed as a dessert, meal replacement or when you're craving something rich and indulgent.

52g Protein

13g Fat

26g Carbs

423 Calories

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A creamy biscoff protein smoothie topped with whipped cream, cookie crumbs, and a whole cookie sits in a wavy glass on a plate with more cookies nearby.

This Biscoff protein smoothie tastes like someone blended a Biscoff cookie into a milkshake, except it has 52g of protein and keeps you full for hours.

I’m not joking. This Biscoff protein smoothie has become a staple in my house, and if you’ve been sleeping on cookie butter as a smoothie ingredient, we’re going to change that.

It takes 5 minutes and is incredibly indulgent but still fits into a healthy macro plan. This smoothie gets most of its protein from the protein powder and cottage cheese, which combined, deliver over 50g of protein in one serving.

For more high protein smoothies, try tropical cottage cheese smoothie or cookies and cream shake.

What is Biscoff?

Biscoff spread (also called cookie butter) is those little red cookies you get on an airplane blitzed into a creamy, spreadable buttery texture. Think, peanut butter but with a warm caramelized, slightly spiced flavor that’s somewhere between gingerbread and caramel.

It’s made by Lotus and sold everywhere. One jar lasts a long time because you only need a tablespoon or two, and that small amount delivers HUGE flavor.

Why you’ll love this recipe

Tastes like a Biscoff milkshake: 52g of protein, zero guilt
Ready in under 5 minutes with minimal cleanup
Kid-approved (mine ask for it constantly, they have no idea it’s packed with protein)
Totally customizable macros depending on your milk, yogurt, and protein powder swaps

Ingredients and Substitutions:

These are the main ingredients and substitutions for this high protein Biscoff smoothie. See recipe card below for full ingredients list and instructions.

Biscoff Spread

The star of the show. We’re only using 1 tsp. and it’s honestly all we need. More than that it gets way too sweet – trust me. I use crunchy because I love the texture but feel free to use smooth.

Biscoff Cookies

For the oh so good crunch factor and makes it look pretty when sprinkled on top.

Vanilla Protein Powder

PEScience Gourmet Vanilla is my go-to. Use code OHSNAP to save. You can use any high quality protein but use one you love the taste and texture of – it matters and makes a difference!

Milk

You can use any type of milk to play with the macros. Fairlife whole milk is the big win if you want to maximize protein. Almond milk is the lowest calorie option with the lightest flavor while oat milk adds subtle sweetness. Regular Fairlife 2% milk is what I use because it’s a solid middle ground.

Low-Fat Cottage Cheese

Use low-fat for a lighter smoothie, full-fat for a richer one. Plain Greek yogurt works too.

Variations

Add a shot of espresso for an energy boost.
Add frozen banana to make this extra cold and creamy.
If you want this milkshake thick, use whole fat cottage cheese and whole milk.
For all my chocolate lovers, use a chocolate protein powder.

Dietary Modifications

For dairy-free, use a dairy-free protein powder and a plant based yogurt.
The Lotus cookies and cookie butter are not gluten-free, so this is not recommended to make gluten-free.

How to make this high protein Biscoff smoothie (a step-by-step visual guide):

See the recipe card below for step-by step instructions. Here are some troubleshooting tips to make the best Biscoff protein smoothie:

On the left, a blender contains cream, protein powder, and a spoonful of cookie butter, surrounded by Biscoff cookies. On the right, a biscoff protein smoothie is poured into a curvy glass with more cookies nearby.

The smoothie came out too thin. Add liquid slowly, always one tablespoon at a time. If you’ve already over-poured, add a few ice cubes to thicken it back up without watering down the flavor.
The Biscoff flavor isn’t coming through. Make sure you’re using spread, not just crushed cookies. If it still feels muted, your protein powder might be competing, a strongly flavored vanilla or sweet cream powder can drown it out. A neutral or lightly flavored vanilla works best here.
It tastes too sweet. use only 1 tsp. of Biscoff spread and use unsweetened almond milk. The sweetness in this recipe compounds fast between the spread, the protein powder, and whole milk. Using just a small amount of Biscoff ensures it’s not too sweet.
The protein powder went chalky. This is almost always a powder quality issue, not a recipe issue. The protein powder you use genuinely matters in smoothies it needs to blend smoothly without grit. PEScience Gourmet Vanilla (code OHSNAP) blends clean every time.
It’s not thick enough to feel like a milkshake. Use whole fat cottage cheese and whole milk if you want this milkshake consistency. Reduce liquid by 2–3 tablespoons from whatever you normally use. Blend in short pulses rather than running it continuously – over-blending warms everything up and kills the thick texture.
Blender order matters. Add your liquid first, then the yogurt, then the protein powder and Biscoff on top. This protects your blender motor and keeps things from getting stuck under the blades.

Recipe FAQs

What does Biscoff taste like?

Biscoff (also called Lotus Biscoff or cookie butter) has a warm, caramelized, spiced flavor. Think gingerbread meets caramel with a hint of cinnamon. It’s made from crushed speculoos cookies and is spreadable like peanut butter. A little goes a long way!

How much protein is in this Biscoff protein smoothie?

There is 52 grams of protein. Full macro breakdown in the recipe card. To log it, search Ohsnapmacros – Biscoff Protein Smoothie in MyFitnessPal or Macros First.

What protein powder works best in this recipe?

A vanilla-flavored whey or casein protein powder blends most smoothly and complements the Biscoff flavor. Use code OHSNAP to save! A caramel or cookie-flavored protein powder also works great if you want to lean into the Biscoff vibe even harder.

Can I make this smoothie ahead of time?

Meh…I say no. Smoothies and shakes are really best to enjoy immediately. If you need to prep ahead, blend everything and refrigerate in an airtight jar for up to 24 hours. Give it a quick shake or re-blend before drinking since separation is normal.

Can I freeze this ahead of time?

Yes! if you make this and freeze it immediately, you can avoid the separation that happens with just refrigeration.

How can I make this Biscoff Protein Smoothie thicker?

To make this more like a thick milkshake consistency, add whole milk and whole fat cottage cheese, add a frozen banana, or reduce the amount of liquid.

Check out our other high-protein smoothie recipes!

If you make this recipe, please leave a rating and/or comment! Tag me on Instagram @ohsnapmacros, I love hearing from you!