Keto Frappuccino


5 from 104 votes
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This keto frappuccino is a low carb and sugar free take on the famous Starbucks frozen blended beverage!  I love how simple and effortlessly it comes together!

Love keto Starbucks drinks? Try my keto coffee, keto coffee creamer, keto whipped coffee, and keto bulletproof coffee

keto frappuccino

I love Starbucks, but ever since going keto, I’ve decided to reign in my Starbucks addiction and start making my favorite drinks at home.

These low-carb frappucinos are a game changer. With no sugar, no dairy, and almost zero carbs, you’d never be able to tell. The texture is thick and creamy, and it has a rich coffee flavor that’s easy to customize with a little sugar-free syrup, whipped cream, you name it.

Table of Contents
  1. Why I love this recipe
  2. Ingredients needed
  3. How to make a keto frappuccino at home
  4. Flavor Variations
  5. How to store leftovers
  6. Frequently asked questions
  7. More keto drink recipes you’ll love
  8. Keto Frappuccino (Recipe Card)

Why I love this recipe

  • Made in seconds. Just add everything to your blender and blend away. It’s that simple. 
  • Easy to customize. Add your favorite sugar-free sweeteners and syrups, or add an assortment of toppings. The options are limitless. 
  • WAY cheaper than Starbucks. A classic frappe will set you back at least $5, but this one is well under a quarter of that. 
  • 1 gram of net carbs. Compared to over 50 grams of carbs in a regular Starbucks frappuccino!

Ingredients needed

  • Milk of choice– Any milk of choice can be used. Alternatively, for a richer flavor, use half and half or add some heavy cream. 
  • Espresso OR instant coffee– If you own a coffee machine or espresso machine, it’s best to use freshly brewed espresso. You want to use 1 serving of espresso per frappuccino. If you don’t have a coffee machine, you can use instant coffee. 1 tablespoon of coffee mixed with 1 tablespoon hot water. 
  • Ice– The smaller your ice cubes, the more smooth and blended your frappuccino will be. 
  • Sweetener of choice– Either monk fruit sweetener or allulose can be used. 
  • Whipped cream– Optional, but what is a keto frappe without keto whipped cream?
  • Caramel– Again, optional, but I love drizzling some keto caramel over the top. 

How to make a keto frappuccino at home

I’ve included step-by-step photos below to make this recipe easy to follow at home. For the full printable recipe instructions and ingredient quantities, scroll to the recipe card at the bottom of this post.

Step 1- Combine the ingredients. In a high-speed blender, add all of the ingredients except for the whipped cream and caramel and blend until smooth.

Step 2- Serve. Transfer to two tall glasses, top with whipped cream, and drizzle with caramel sauce.

low carb frappuccino

Flavor Variations

While I like to stick to the classic coffee frappuccino, you can easily change up the flavors to some of Starbucks’ most popular flavors. Each of these would still be low carb and have less than 2 grams net carbs per beverage

  • Peppermint mocha– Add 1-2 drops of peppermint extract to the blender. Swap out the caramel for a sugar free chocolate sauce. 
  • Java Chip– Increase the espresso to double the amount. 
  • Chocolate mocha- Drizzle sugar free chocolate syrup and add 1 tablespoon cocoa powder. 
  • White chocolate– Add 1-2 drops white chocolate extract. 
  • Mocha cookie crumble– Add 1-2 homemade Oreos to the blender and sprinkle with extra crushed up cookies on top;
  • Pumpkin spice– Add 1-2 tablespoons pumpkin puree and 1 tablespoon pumpkin spice. 

How to store leftovers

To store: I highly suggest making your frappuccino fresh and enjoying it promptly, but if you have any leftovers, you can store them in an airtight container in the fridge for up to 1-2 days. Make sure to re-mix it before enjoying as it’ll separate over time. 

To freeze: Pour the frappuccino into an ice cube tray and freeze the ice cubes. Store the cubes in a freezer-safe container for up to 1 month, then add them to a blender with a splash of coffee or milk and re-blend until it reaches your desired consistency.

keto Starbucks frappuccino

Frequently asked questions

Can I use decaf coffee?

Yes, if you have an intolerance to caffeine, you can use decaffeinated espresso or instant coffee. 

More keto drink recipes you’ll love

keto coffee recipe

Keto Frappuccino

5 from 104 votes
This keto coffee frappuccino is a low carb and sugar free twist on the famous Starbucks frozen blended beverage! No sugar needed and less than 1 gram carb per serving!
Servings: 2 servings
Prep: 1 minute
Cook: 1 minute
Total: 2 minutes



  • In a high speed blender, add all your ingredients, except for the whipped cream and caramel, and blend until combined and smooth.
  • Transfer to two tall glasses and top with whipped cream and drizzle with caramel sauce.


* If you don’t have a coffee machine (like a Nespresso or similar), you can use instant coffee. Combine 1 tablespoon instant coffee with 2 tablespoon boiling water. 
** For a richer texture and flavor, use heavy cream or half and half. 
Please refer to the blog post for other flavor options, like a Keto Mocha frappuccino, Keto Java Chip Frappuccino, and others. 


Serving: 1servingCalories: 39kcalCarbohydrates: 2gProtein: 1gFat: 4gSodium: 257mgPotassium: 35mgFiber: 1gVitamin A: 51IUCalcium: 240mgNET CARBS: 1g
Course: Breakfast
Cuisine: American
Author: Arman Liew
Tried this recipe?Give us a shout at @thebigmansworld or tag #thebigmansworld!

Arman Liew

I’m a two time cookbook author, photographer, and writer, and passionate about creating easy and healthier recipes. I believe you don’t need to be experienced in the kitchen to make good food using simple ingredients that most importantly, taste delicious.

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  1. Also, if you have a problem with the drinks getting watery too fast, a tiny bit each of Lecithin and Xanthan gum will hold it together and do the trick. Just use very, very little and add a tiny bit in subsequent times until you find the right mix (don’t try on the batch, xanthan gum can take a minute to thicken up and it’s easy to add more before it’s fully set up and get too much.)

  2. 5 stars
    Love this recipe. Great for a coffee craving. I also have a cheaters version. Cold brew coffee, low carb/keto ice cream and some ice! It’s amazing.

  3. 5 stars
    I made this today cause I love frappes and on WW I can’t have the original from the store so I tried this and omg. The best. Better than what I get from the other place. 100 stars ⭐️.
    Thanks 🙏 for sharing.