Easy Toasted Marshmallow Coffee Syrup You Can Make at Home

The sweet, and slightly smoky deliciousness of a campfire marshmallow along with your morning coffee—that’s the magic of this Homemade Toasted Marshmallow Coffee Syrup. It’ll turn your daily routine into something a little cozier, a little more yummy. Perfect for lattes, iced coffees, matcha lattes, hot cocoa, or even atop your ice cream sundae!

Make Your Own Coffee Syrup At Home

Have you ever tried to make your own syrup at home? It’s SO easy to do – all you need are a few pantry ingredients, and you can make so many different flavors! It’s also so much less expensive than buying pre-made syrup. In addition, in today’s world, I think we are all trying to save a little bit of our hard earned money, as well as trying to reduce the amount of added ingredients like preservatives. This recipe is an easy syrup and has a delicious marshmallow flavor – I think you’ll love it. This is for all of my coffee lovers.

How to Make Toasted Marshmallow Syrup.

All you’ll need are a few pantry staples and this syrup comes together in minutes—no fancy gadgets, just your oven’s broil setting, a saucepan, and 4 simple ingredients. My favorite part is the smell of those toasty marshmallows – who needs a campfire? You can make this any time of year.

What are the Ingredients for Toasted Marshmallow Coffee Syrup?

• 1 cup granulated sugar
• 1 cup water
• 8 large marshmallows (regular size)
• 1 tsp vanilla extract or vanilla bean paste

Step by Step Instructions

1. Make the base syrup
   In a small saucepan over medium heat, combine sugar and water. Gently stir until the sugar dissolves and the mixture starts to simmer—about 5 minutes.
2. Toast the marshmallows
   On a baking sheet, add a piece of parchment and place marshmallows on the baking sheet. Set your oven to broil, add the baking sheet to the oven. Broil in the oven until the tops are golden-brown and slightly charred. We need those slightly scorched tops – those are what give it that irresistible toasted flavor! CAREFUL: these won’t take long – like a minute, so watch them so that they aren’t too charred.
3. Add toasted marshmallows to syrup
   Stir the toasted marshmallows into the hot syrup. Let them melt and dissolve for 2 to 3 minutes. You’ll notice the syrup turning amber-colored and smelling like your favorite, fluffy campfire treat. Simmer/Low Boil until all the bits are dissolved, just another few minutes.
4. Finish
   Remove from heat and stir in the vanilla extract/vanilla paste. Let cool, then transfer to a glass jar with a tight lid.
5. Storage
   Store in the fridge for up to one month—perfect for making your mornings sweet and cozy, all week long.

Can I Use Brown Sugar

Yes! Use brown sugar in place of white sugar for a slightly deeper flavor and caramel taste.

Can I Use Sugar Substitute

I have never made this recipe using a sugar substitute so I am not able to attest to the consistency or result. If you try it, please let me know how it turns out and I’ll update the recipe!

How to Use Marshmallow Syrup

Here are 4 easy ways to use toasted marshmallow syrup:

1. Coffee & Lattes
   • Stir a splash into hot coffee or a latte for a cozy s’mores vibe.
   • Pairs well with chocolate syrup or mocha for a “campfire mocha.”
2. Hot Chocolate Upgrade
   • Stir into hot cocoa instead of using marshmallows.
   • Top with whipped cream and a sprinkle of crushed graham crackers.
3. Cocktails & Mocktails
   • Mix with bourbon or rum for a toasted marshmallow old-fashioned.
   • Or use in a mocktail with cream soda or root beer float.
4. Drizzle on Dessert
   • Pour over vanilla ice cream, pancakes, or waffles.
   • Use as a syrup for milkshakes or blended frappes.

Super Easy Toasted Marshmallow Latte Ideas You Can Make at Home

Toasted Marshmallow Latte

Ingredients:

• 1–2 Tbsp toasted marshmallow syrup (adjust to taste)
• 1 shot espresso (or ½ cup strong brewed coffee)
• ¾ cup steamed milk of your choice
• Whipped cream
• Crushed graham crackers or a drizzle of chocolate

Instructions:

1. Brew espresso (or strong coffee).
2. Stir in the toasted marshmallow syrup until fully dissolved.
3. Pour in steamed milk and stir gently.
4. Top with whipped cream.
5. Optional: Sprinkle crushed graham crackers or drizzle with chocolate for a s’mores-style finish.

Iced Toasted Marshmallow Latte

Ingredients:

• 1–2 Tbsp toasted marshmallow syrup
• 1 shot espresso (or ½ cup strong brewed coffee, cooled)
• ¾ cup cold milk (dairy or non-dairy)
• Ice cubes
• Whipped cream (optional)
• Chocolate drizzle or crushed graham crackers

Instructions:

1. Fill a glass with ice.
2. Pour in the toasted marshmallow syrup.
3. Add espresso (or cooled strong coffee).
4. Top with cold milk and stir.
5. Finish with whipped cream, chocolate drizzle, or graham cracker crumbs if you want that campfire s’mores vibe.

Continue to Content

Easy Toasted Marshmallow Coffee Syrup You Can Make at Home

Yield: 1 1/2 cups

Prep Time: 5 minutes

Cook Time: 10 minutes

Total Time: 10 minutes

The sweet, smoky deliciousness of a campfire marshmallow along with your morning coffee—that’s the magic of this Homemade Toasted Marshmallow Coffee Syrup. It'll turn your daily routine into something a little cozier, a little more yummy. Perfect for lattes, iced coffees, matcha lattes, hot cocoa, or even atop your ice cream sundae!

Print

Ingredients

• 1 cup granulated sugar
• 1 cup water
• 8 large marshmallows (regular size)
• 1 tsp vanilla extract or vanilla bean paste

Instructions

1. Make the base syrup: In a small saucepan over medium heat, combine sugar and water. Stir until the sugar dissolves and the mixture just starts to simmer—about 5 minutes.
2. Toast the marshmallows: On a baking sheet, add a piece of parchment and place marshmallows on the baking sheet. Set your oven to broil, add the baking sheet to the oven. Broil in the oven until the tops are golden-brown and slightly charred. We need those lightly scorched bits - those are what give it that irresistible toasted flavor! CAREFUL: these won't take long - like a minute, so watch them so that they aren't too charred.
3. Add toasted marshmallows to syrup: Stir the toasted marshmallows into the hot syrup. Let them melt and dissolve for 2 to 3 minutes. You’ll notice the syrup turning amber and smelling like a fluffy campfire treat. Simmer/Low Boil until all the bits are dissolved; another few minutes.
4. Finish: Remove from heat and stir in the vanilla extract/paste. Let cool, then transfer to a glass jar with a tight lid.
5. Storage: Store in the fridge for up to one month—perfect for making your mornings sweet and cozy, all week long.

Notes

Helpful Tips:

• Use full-sized marshmallows—mini marshmallows contain more cornstarch and can result in a syrup that’s overly thick
• Don’t shy from the scorch—a bit of char adds depth without making it bitter. Balance is key!
• Adjust sweetness—if it’s too sweet, dilute with a little hot water. It still tastes amazing even with a touch less sugar

Nutrition Information

Yield 36 Serving Size 1
Amount Per Serving Calories 27Total Fat 0gSaturated Fat 0gTrans Fat 0gUnsaturated Fat 0gCholesterol 0mgSodium 2mgCarbohydrates 7gFiber 0gSugar 6gProtein 0g

Nutrition calculation is offered as a courtesy and no guarantee that the information will be completely accurate. The data provided are a product of online nutrition calculators and should be considered an estimate only. I am not a registered dietician nor a certified nutritionist. For more accurate information, or if you have dietary restrictions, please consult a trusted professional. A Healthy Makeover strongly supports Intuitive Eating, body trust, and Health at Every Size.

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