Sugar-Free Cold Brew Coffee Recipe ~ Starbucks at Home

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Sugar-Free Cold Brew Coffee Recipe ~ Starbucks at Home

Even though I’m on the carnivore diet, I still can’t live without my coffee – especially my cold brew. I love Starbucks, but I don’t love the expense. So, instead of going broke for coffee, we make sugar-free cold brew at home.

It’s super simple to do, but I never realized until I tried it myself. All you need are three ingredients and some ice.

What You Need:

  • Starbucks Cold Brew Concentrate (Signature Black)
  • Torani Sugar-Free Syrup (Flavor of Your Choice)
  • Creamer of Your Choice (I Use Horizon Organic Half & Half)
  • Ice (Optional)
  • Shaker Bottles (Or Your Preferred Iced Coffee Cup)

You can find the Starbucks Cold Brew Concentrate at most grocery stores in the US. (I’m not sure if it’s available in other countries.) If you don’t have it in your area, you can also buy it on Amazon. Here’s what it looks like:

Starbucks Cold Brew Concentrate
Starbucks Cold Brew Concentrate

Torani sugar-free syrups have been a staple of low-carb dieters for literally decades. You can usually find several different flavors at your local grocery store or Walmart. I get mine from Walmart, but as with everything else – you can buy them on Amazon too.

Torani Sugar Free Syrups
My collection of Torani Sugar-Free Syrups

I like Horizon organic half and half for my creamer because it only contains milk and cream – no additives or gums. But you can use any creamer you like – from heavy cream to oat milk. You may need to use slightly more of a plant-based creamer, but that’s up to your taste.

Horizon Organic Half and Half is my favorite creamer.

You don’t need ice to make this recipe, but I think it tastes better (and more like what you’d get from Starbucks) with ice. But that’s up to your personal preference!

I like to use a shaker bottle/cup with the little mixer ball removed to make my cold brew coffees. I use the ones that have the measurements printed on the outside. Makes it so much easier to measure everything out!

Shaker Cups for Making Homemade Cold Brew Coffee
These are the small shaker bottles I use to make my cold brew.

I use these shaker bottles that I bought from Amazon and they work great. They’re the perfect size for a single serving, and they come with lids that you can drink from or put a straw into. And of course, they include measurement marks in both ounces and milliliters.

How to Make It

First, pour 4 ounces of the Starbucks Cold Brew Concentrate into your cup. Then, add enough water to fill it to 12 ounces.

NOTE: I make my cold brews a little weak. If you like them stronger, use 4 ounces of water to every 4 ounces of concentrate.

Next, add 1 tablespoon (15 ml) of sugar-free syrup for flavor – or more if you like. Then, add 1 tablespoon (15 ml) of half and half (or the creamer of your choice).

Finally, add as much ice as you like, stir, and serve!

My Favorite Homemade Cold Brew Coffee
I drink one of these almost every day. They are so good!

Sugar-Free Cold Brew Coffee

Servings: 1 person


  • 4 ounces Starbucks Cold Brew Concentrate Signature Black
  • 4 – 8 ounces water
  • 1 tablespoon Torani sugar-free syrup any flavor
  • 1 tablespoon half and half or creamer of your choice
  • Ice optional


  • Pour 4 ounces of the Starbucks Cold Brew Concentrate into a cup. Add enough water to fill to 8 – 12 ounces. For stronger coffee, use less water.
  • Add the sugar-free syrup and creamer.
  • Add as much ice as you like, stir, and serve!

Recipe Notes

I really like the way this recipe turns out using 8 ounces of water to 4 ounces concentrate, but according to the bottle you’re supposed to mix at a 1:1 ratio. So, the choice is yours. You can make it strong or weak, depending on your taste.

For stronger coffee, use 4 ounces concentrate to 4 ounces water. For less strong coffee, use 4 ounces concentrate to 8 ounces water. You might even try using 6 ounces of water for something in between strong and weak.

Use any sugar-free syrup you like in this recipe. My favorite it Torani Classic Hazelnut, but most of the flavors are pretty good. If you really want it to taste like Starbucks, you can buy Starbucks sugar-free vanilla syrup and use that.

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