Ingredients
- 1 tablespoon instant coffee
- 2 tablespoons water, divided
- 1/2 teaspoon xanthan gum, optional
- 1 cup whole milk
- 4 tablespoons caramel sauce or syrup, plus more for garnish
- 6 ice cubes
- Whipped cream, for garnish
Steps to Make It
- Gather the ingredients.
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- In a small dish, add the instant coffee and 1 tablespoon of water. Mix until the coffee is dissolved.
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- In a separate dish, combine the xanthan gum and 1 tablespoon of water, mixing it into a lumpy paste.
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- In a blender, add the instant coffee concentrate, xanthan gum paste, milk, caramel sauce or syrup, and ice cubes.
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- Pulse a few times then blend until smooth.
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- Pour into one or two glasses.
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- Garnish with whipped cream and a drizzle of caramel sauce. Serve and enjoy.
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Tips
- If you like a stronger coffee flavor, dissolve 2 tablespoons of instant coffee into 1 tablespoon of water.
- The recipe yields about 2 cups of the coffee drink, which is equivalent to two “tall” or one “grande” at Starbucks. It keeps well in the fridge for a day and can be frozen then left to thaw until drinkable.
- Whole milk is preferred because the extra fat creates a thicker, more luscious drink. Half and half is a good alternative.
- When switching to lighter milk or non-dairy alternatives (e.g., almond, coconut, rice, or soy milk), start with 1/2 to 3/4 cup of the milk and 4 ice cubes, then adjust the consistency. To make it thicker, add ice and blend again; add milk to thin the drink.
Recipe Variation
If you’re craving a caramel Frappuccino but don’t want to run out for specialty ingredients, there is an alternative. It’s not quite as perfect but it is delicious and more like the bottled Frappuccinos that are commonly found at convenience stores.
- Blend 3/4 cup each of strong coffee, whole milk, and 4 tablespoons of caramel syrup or sauce with about 10 ice cubes until smooth. This mix tends to separate in the glass, so stir it to incorporate everything.
- It’s a great make-ahead option that yields about 4 cups and can be stored for a couple of days in the fridge for a quick grab-and-go coffee drink.
- For the best taste, brew coffee with a stovetop espresso pot or use cold-brew coffee. Alternatively, add an extra tablespoon or two to your drip coffee machine.
What’s the Difference Between Caramel Sauce and Syrup?
Caramel sauce tends to be thicker and richer than caramel syrup because it includes cream, milk, or butter. It’s popularly used as a dessert topping. Caramel syrup is simply caramelized sugar mixed with water that’s reduced into a syrup. It’s more often used to sweeten drinks or as an alternative to pancake syrup. Both ingredients can be homemade or purchased at grocery stores and will work in this recipe. You may want to use 6 tablespoons of caramel syrup for extra flavor.
What Is Xanthan Gum?
Xanthan gum is a natural, flavorless thickening agent. The white powder is a vegan alternative to gelatin, a key ingredient in many gluten-free foods (such as bread), and one of the additives in the Starbucks Frappuccino base. You can typically find xanthan gum in natural food stores or specialty baking sections at grocery stores, as well as online stores.

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