This keto iced coffee is a game-changer. It’s creamy, sweet, and cinnamon-spiced — without the sugar crash.
I love sipping this on a warm afternoon or when I need a cozy flavor fix that still keeps me in fat-burning mode.
It’s super easy to make and comes together in minutes.
You’ll love the cold brew punch, the brown sugar flavor (without actual sugar!), and that final swirl of creamy goodness over ice.
Why I Love This Recipe
I first started making this during a low-carb challenge, and it totally replaced my coffee shop cravings. I’ve tested so many versions, and this one nails the creamy-sweet balance without any weird aftertaste.
- You get the cozy cinnamon sugar flavor without sugar
- Perfect for hot days, but also works warm
- It’s keto, dairy-free, and only takes 5 minutes
- Tastes like a $6 coffee shop drink but way healthier and cheaper
Servings and Time
Servings: 1 large iced coffee
Prep time: 5 minutes
Cook time: 0 minutes
Total time: 5 minutes
What You’ll Need
- 1 cup unsweetened cold brew coffee
- 1/3 cup unsweetened almond milk
- 1 tbsp powdered erythritol (like Swerve or Lakanto)
- 1/2 tsp ground cinnamon
- 1/8 tsp vanilla extract
- 1/8 tsp blackstrap molasses (adds “brown sugar” taste — still keto!)
- 1 cup ice
Pro Tips
- Use powdered erythritol — granules won’t dissolve as well in cold drinks
- Shake your almond milk before measuring for the creamiest texture
- Blackstrap molasses adds deep brown sugar flavor with almost no carbs
- Mix cinnamon in while blending to avoid floating spice clumps
- Add collagen or MCT oil if you want to turn this into a full-blown breakfast coffee
Tools You’ll Need
- Tall glass or mason jar
- Spoon or milk frother
- Measuring cups and spoons
- Small mixing bowl or cup
- Reusable straw (optional, but makes it more fun)
Substitutions and Variations
- Swap almond milk with coconut milk or heavy cream if you prefer
- Use monk fruit or stevia instead of erythritol, adjust to taste
- Add a scoop of collagen peptides for extra protein
- Want it hot? Just skip the ice and heat up the cold brew
Make Ahead Tips
Mix everything except the ice and store in the fridge for up to 3 days. Just shake, pour over fresh ice, and go.
How to Make Keto Cinnamon Brown Sugar Iced Coffee
Step 1: Combine the sweetener and spices
In a small bowl, mix 1 tbsp powdered erythritol, 1/2 tsp ground cinnamon, 1/8 tsp vanilla extract, and 1/8 tsp blackstrap molasses. Stir until smooth.
Step 2: Add the cold brew
Pour 1 cup of unsweetened cold brew coffee into the bowl and whisk until everything is fully dissolved and mixed.
Step 3: Add the almond milk
Pour in 1/3 cup unsweetened almond milk and stir again until smooth.
Step 4: Pour over ice and serve
Fill a tall glass with 1 cup ice, then pour the coffee mixture over. Optional: Stir gently and top with a dash of cinnamon.
Leftovers and Storage
You can keep the coffee mixture (without ice) in the fridge for up to 3 days. Just shake well and pour over fresh ice when you’re ready to drink.
Macros (approximate per serving)
- Calories: 30
- Fat: 2g
- Carbs: 2g net (most from molasses)
- Protein: 1g
- Sugar: 0g
Why This Recipe Works (Quick Science)
- Erythritol doesn’t spike blood sugar and works great in cold drinks when powdered
- Blackstrap molasses gives deep flavor with minimal carbs — the tiny amount adds big impact
- Cold brew is smoother and less acidic than hot coffee, perfect for layering with flavors
Common Mistakes
- Using granulated sweetener instead of powdered — it won’t dissolve and makes the drink gritty
- Skipping the stir — you need to blend cinnamon and molasses fully or they’ll float/sink
- Using flavored almond milk — these usually have hidden sugars, so go unsweetened
What to Serve With
- A keto muffin or fat bomb
- Almond flour waffles
- Scrambled eggs and avocado
- Chia pudding
FAQ
Can I make this with hot coffee?
Yes! Just skip the ice and warm up the mixture after mixing.
Is blackstrap molasses really keto-friendly?
In small amounts like this (1/8 tsp), it adds under 1g net carbs and a lot of flavor — totally worth it.
Can I use heavy cream instead of almond milk?
Absolutely. It’ll be richer and creamier. Start with 2 tbsp and adjust to taste.
Do I need a blender?
Nope! A spoon or small whisk works great. You can use a frother if you want it extra smooth.
Can I double or triple this recipe?
Yes, just scale up all the ingredients and store the base in the fridge for a few days.
Go Make It
This is one of those recipes you’ll come back to again and again. It’s simple, cozy, and feels like a treat — without kicking you out of ketosis. Give it a try and let me know how it turned out in the comments. I’d love to hear what twist you added!
