Keto Cinnamon Brown Sugar Iced Coffee

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

Yes! Just skip the ice and warm up the mixture after mixing.

In small amounts like this (1/8 tsp), it adds under 1g net carbs and a lot of flavor — totally worth it.

Absolutely. It’ll be richer and creamier. Start with 2 tbsp and adjust to taste.

Nope! A spoon or small whisk works great. You can use a frother if you want it extra smooth.

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!