How To Make Coffee Syrup

5 from 13 votes
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How to make coffee syrup – this homemade coffee-flavored syrup requires just two ingredients and is perfect for adding to iced coffee, cocktails, and drizzling over desserts!

Homemade coffee syrup in a pot with coffee beans around it

I’ve already shared several simple syrup recipes that work well for preparing lemonade and flavoring coffee and other drinks, including homemade chocolate syrup, lemon syrup, and vanilla syrup. However, this time I’m making a coffee-flavored syrup. This homemade coffee syrup is perfect for making iced coffee, drizzling over ice cream, adding to cocktails, and more. All without having to brew the coffee each time.

All you need are 2 natural ingredients and 10 to 15 minutes to prepare this coffee syrup recipe. Plus, it’s more cost-efficient and adaptable compared to commercial versions. You can even use your sugar of choice – regular, unrefined, or even make sugar-free coffee syrup. Enjoy it all yourself or gift it to others; either way, it’s perfect for any coffee lover!

Homemade coffee syrup in a bottle with few coffee beans around it

And if you want to enjoy more simple coffee treats, you might enjoy this recipe for vegan coffee ice cream, coffee peanut butter, or a frothy Dalgona latte!

The Ingredients

  • Coffee: For this coffee syrup recipe, you’ll be making the simple syrup with strongly brewed coffee in place of plain water. You can use any coffee you like, percolated instant, cold-brew, etc. You can also use decaffeinated coffee if preferred.
  • Sugar: I used raw cane sugar. However, you can use white sugar, brown sugar (which will taste more caramel-like), coconut sugar, etc.
Ingredients for coffee syrup

For sugar-free options: You can use sugar alternatives, too (i.e., monk fruit sweetener, erythritol, stevia, etc.), though the syrup won’t thicken in the same way. You may also want to adjust the amount slightly as the sweetness levels vary between sweeteners.

Optional Add-ins and Variations

  • Vanilla: Add a vanilla bean/pod (sliced in half) to the skillet while the syrup simmers.
  • Almond extract: Just a small amount added once the homemade syrup has cooled tastes delicious.
  • Spices: Such as a pinch of cinnamon (or simmer a cinnamon stick with the syrup) or nutmeg.

How to Make Coffee Syrup?

First, brew the coffee following your favorite method (i.e., instant coffee granules, French press, drip, etc.) The aim is to make it almost double the strength you usually would.

Then, transfer the coffee to a small saucepan with your preferred sugar or sweetener and bring it to a soft boil over medium heat. Stir constantly until the sugar dissolves.

Then, reduce the heat to low and allow it to simmer for 3-5 minutes.

Steps for making coffee syrup

If you want a thicker syrup, you can continue to simmer for up to 15-20 minutes.

Allow the homemade coffee syrup to cool and transfer it to a sterilized glass container.

How to sterilize a jar?

Preheat the oven to 325ºF/160ºC. Wash the jar or bottle in hot soapy water, rinsing it well. Then place them, with no rubber, plastic, or otherwise non-heatproof elements, onto a clean oven tray and heat for 10-15 minutes until completely dry.

Pouring coffee syrup into a bottle

How to Use Coffee Syrup?

You can use this syrup to make warm or iced milk coffee/lattes. I usually add just a tablespoon or two of the coffee syrup to a glass of milk. But feel free to adjust to taste. There are several other uses, including:

  • Add to milkshakes.
  • Make a coffee cream soda.
  • Drizzle in hot chocolate (that’s how you easily make a mocha).
  • Add to cocktails (i.e., espresso martini, white Russian, black Russian, etc.).
  • Just a tablespoon will add flavor to other beverages as well. Flavor anything from tea to lemonade.
  • Drizzle over ice cream or enjoy with ice cream floats.
  • Brush over cakes or drizzle over frosted cupcakes/cake.
  • Spoon over cheesecake.
  • Drizzle over waffles, French toast, and pancakes and other breakfast treats.
  • Drizzle over yogurt bowls (or dairy-free coconut or almond yogurt) with fruit.
  • Enjoy with oatmeal and overnight oats.
  • You can even add it to marinades and other homemade sauces to bring in extra flavor to your dishes.
Cafe latte in a glass and coffee syrup in a bottle

Storage Recommendations

Store: Store the coffee-flavored syrup in an airtight container in the fridge for 2 weeks. Give it a shake before using it each time.

If it’s thickened too much in the fridge, you can microwave it for 15-25 seconds before using it.

Freeze: Transfer the syrup to a freezer-safe jar/container or pour the syrup into an ice cube tray and freeze for up to 4 months. It won’t freeze solid, so you can use it almost immediately from the freezer.

Top tip: To give your drinks a fun twist, add coffee syrup ice cubes to your iced lattes and iced americanos.

FAQs

How to thicken the syrup?

The amount of sugar and length of reduction (simmering) impact the thickness of this coffee syrup recipe. Use cornstarch if you want a thicker syrup to drizzle over desserts without any additional sugar.
Create a cornstarch slurry by combining one teaspoon of cornstarch with one tablespoon of water and mixing until it’s lump-free. Then whisk that into the syrup, increase the heat to medium, and allow it to simmer until it thickens. Add more if you need it to further thicken.

What coffee is best to use?

This is up to you. My only recommendation is to make sure you use one that you like the flavor of for a great taste. Otherwise, you can use beans, ground, instant, etc.

Can I use flavored coffee?

I wouldn’t recommend it, as I worry that the artificial flavorings may change during the simmering process and taste unpleasant. However, if you try, then let me know in the comments.

A bottle with homemade coffee syrup

Recipe Tips and Notes

  • Adjust the sugar ratio: I’ve used a traditional 1:1 ratio for this coffee simple syrup. For a rich syrup, increase the sugar to a 2:1 ratio (and double the shelf life to a month). You can also reduce the amount of sugar, but the shelf life will also reduce.
  • Use strong brewed coffee: No matter which method you use to brew it, it’s important to make it stronger than usual. For example, if using ground coffee, use 3-4 tablespoons per cup of water. For instant coffee, use 2-3 tablespoons per cup of water.
  • Don’t use high heat: Otherwise, you may scald the coffee and make the entire batch of coffee flavoring syrup taste burnt.
  • Results will vary: The coffee syrup may vary in consistency, color, taste, and transparency depending on the type of coffee and sugar used in the recipe.

More Syrup Recipes

If you try this homemade coffee syrup recipe, I’d love to hear your thoughts and questions below. Also, I’d appreciate a recipe card rating below, and feel free to tag me in your recipe recreations on Instagram @Alphafoodie!

How to Make Coffee Syrup

5 from 13 votes
By: Samira
How to make coffee syrup – this homemade coffee-flavored syrup requires just two ingredients and is perfect for adding to iced coffee, cocktails, and drizzling over desserts!
Prep Time: 5 minutes
Cook Time: 10 minutes
Total Time: 15 minutes
Servings: 24 tablespoons

Ingredients 
 

This will yield about 24 Tbsp syrup (1.5 cups/360ml)

  • 12 oz brewed coffee strong; 1.5 cups; you can use beans, ground, instant, decaf, etc.
  • 10.8 oz sugar raw cane sugar, coconut sugar, white sugar, or other; 1.5 cups

Check the Notes Section below for optional add-ins!

    Instructions 

    • Brew the coffee following your favorite method (i.e., instant coffee granules, French press, drip, etc.) The aim is to make it almost double the strength you usually would.
    • Transfer the coffee to a small saucepan with your preferred sugar or sweetener and bring it to a soft boil over medium heat. Stir constantly until the sugar dissolves.
    • Then, reduce the heat to low and allow it to simmer for 3-5 minutes. If you want a thicker syrup, you can continue to simmer for up to 15-20 minutes.
    • Allow the homemade coffee syrup to cool and transfer it to a sterilized glass jar.

    Storage Instructions

    • Store: Store the syrup in an airtight bottle in the fridge for 2 weeks. Give it a shake before using it each time.
      If it’s thickened too much in the fridge, you can microwave it for 15-25 seconds before using it.
      Freeze: Transfer the syrup to a freezer-safe jar/container or pour the syrup into an ice cube tray and freeze for up to 4 months. It won't freeze solid, so you can use it almost immediately from the freezer.

    Notes

    • Adjust the sugar ratio: I’ve used a traditional 1:1 ratio for this coffee syrup. For a rich syrup, increase the sugar to a 2:1 ratio (and double the shelf life to a month). You can also reduce the amount of sugar, but the shelf life will also reduce.
    • Use strong brewed coffee: No matter which method you use to brew it, it’s important to make it stronger than usual. For example, if using ground coffee, use 3-4 tablespoons per cup of water. For instant coffee, use 2-3 tablespoons per cup of water.
    • Don’t use high heat: Otherwise, you may scald the coffee and make the entire batch of coffee flavoring syrup taste burnt.
    • Results will vary: The coffee syrup may vary in consistency, color, taste, and transparency depending on the type of coffee and sugar used in the recipe.
    Optional Add-ins and Variations:
    • Vanilla: Add a vanilla pod (sliced in half) to the skillet while the syrup simmers.
    • Almond extract: Just a small amount added once the coffee syrup has cooled tastes delicious.
    • Spices: Such as a pinch of cinnamon (or simmer a cinnamon stick with the syrup) or nutmeg.
     
    Check the blog post for more notes, serving recommendations, and answers to top FAQs!
    Course: Condiment, Dessert, DIYs, Drinks
    Cuisine: American, Global
    Freezer friendly: 4 Months
    Shelf life: 2 Weeks

    Nutrition

    Serving: 1Tbsp, Calories: 49kcal, Carbohydrates: 13g, Protein: 1g, Fat: 1g, Saturated Fat: 1g, Monounsaturated Fat: 1g, Sodium: 1mg, Potassium: 7mg, Sugar: 13g, Calcium: 1mg, Iron: 1mg

    Nutrition information is automatically calculated, so should only be used as an approximation.

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