Roasted Marshmallow Simple Syrup: A Campfire Delight in a Bottle
There’s something magical about the experience of roasting marshmallows over an open campfire. The warmth of the fire, the crackling sound, and the sweet, smoky flavor that fills the air as you gently toast marshmallows to golden perfection—it’s a nostalgic memory that many of us cherish. If you want to capture that feeling and bring it into your kitchen, look no further than roasted marshmallow simple syrup. This sweet, smoky syrup mimics the essence of roasted marshmallows and can be used in various beverages and desserts, making it a versatile and delicious treat for any occasion.

Ingredients
To make roasted marshmallow syrup, you’ll need a few simple ingredients. Start with white sugar and filtered water as the base of your syrup. You’ll also need marshmallows to give the syrup its signature roasted flavor. Finally, a touch of vanilla extract is added at the end to enhance the sweet, toasted taste. The result is a rich and flavorful syrup that brings the warmth of a campfire straight to your favorite dishes and drinks.
Directions
Making roasted marshmallow syrup at home is easy and rewarding. Start by preparing the marshmallows for roasting. If you have a toaster oven, you can simply lay the marshmallows on a baking sheet and toast them until they turn golden brown. Flip them halfway through to ensure even roasting on all sides. Alternatively, you can thread the marshmallows onto a skewer and use a kitchen torch or your gas stove to brown them to perfection. The goal is to achieve a deep, toasted flavor that will infuse your syrup with the essence of campfire-roasted marshmallows.
While the marshmallows are toasting, combine white sugar and filtered water in a medium saucepan. Set the heat to medium and bring the mixture to a gentle simmer. Stir occasionally until the sugar completely dissolves into the water. This will create the base for your syrup, allowing it to blend seamlessly with the roasted marshmallows later on.
Once the marshmallows are perfectly toasted, carefully stir them into the saucepan with the sugar-water mixture. Use a whisk to combine the ingredients well, ensuring that the marshmallows are fully incorporated into the syrup. Allow the mixture to simmer for about five minutes, or until the marshmallows have completely dissolved into the syrup, leaving behind that unmistakable roasted flavor.
After the marshmallows have dissolved, remove the saucepan from the heat and stir in a tablespoon of vanilla extract. This will enhance the syrup’s sweet and warm notes, bringing out the marshmallow flavor even more. Let the syrup cool to room temperature, and then strain the mixture using a fine mesh strainer to remove any remaining solids or bits of marshmallow. Transfer the liquid to a clean container, and you’ll have a delicious roasted marshmallow simple syrup ready to use.
Store the syrup in an airtight container in the refrigerator for up to three weeks. This allows you to enjoy the delightful flavor of roasted marshmallows in your drinks and desserts whenever the mood strikes.
How to Use Roasted Marshmallow Syrup
The beauty of roasted marshmallow syrup lies in its versatility. Whether you’re making a cozy drink or adding a touch of sweetness to a dessert, this syrup adds a layer of warmth and flavor that will remind you of sitting by the campfire. Here are some ideas for using your homemade roasted marshmallow syrup:
In Coffee or Hot Beverages
If you love coffee or hot chocolate, roasted marshmallow syrup is a great way to add sweetness and a hint of smokiness to your favorite hot drinks. Stir a little of the syrup into your coffee or cocoa for a comforting, campfire-inspired flavor. It’s the perfect drink for chilly days or cozy evenings, bringing the essence of roasted marshmallows to your cup.
In Iced Drinks
Roasted marshmallow syrup isn’t just for hot drinks—it’s also fantastic in iced beverages. Whether you’re making iced coffee, iced tea, or even iced chocolate, a splash of this syrup will give your drink a unique, sweet twist. You can even combine it with milk or cream for a creamy, dessert-like drink that’s perfect for hot summer days.
In Cocktails
For those who enjoy crafting cocktails, roasted marshmallow syrup is an excellent addition. The smoky, toasted flavor pairs wonderfully with whiskey or rum, creating a warm and inviting drink. You can mix it with bourbon and a splash of cola for a smoky twist on a classic cocktail, or combine it with vanilla vodka and cream for a dessert-inspired drink. Roasted marshmallow syrup adds a fun and unexpected flavor to any cocktail.
On Pancakes or Waffles
Elevate your breakfast by drizzling roasted marshmallow syrup over pancakes, waffles, or French toast. The syrup’s sweet, toasted flavor will remind you of the warmth of a campfire, making it a delightful way to start your day. You can even drizzle it over oatmeal or yogurt for a cozy, sweet breakfast treat.
In Desserts
This syrup isn’t just for drinks—it’s also a great addition to desserts. Drizzle it over ice cream, cakes, or brownies for a sweet, marshmallow-inspired topping. You can also use it as a glaze for cookies or cupcakes, adding an extra layer of flavor to your baked goods. Roasted marshmallow syrup is perfect for anyone who loves the flavor of toasted marshmallows in their desserts.
In Smoothies
Add a touch of campfire-inspired sweetness to your smoothies by including roasted marshmallow syrup. It works especially well with banana, chocolate, or berry-based smoothies. Just a small amount of syrup will bring a unique depth of flavor to your smoothie, making it taste like a delicious, dessert-worthy treat.
Adjusting the Flavor
One of the best things about making syrup at home is that you can adjust the flavor to suit your preferences. If you want a stronger roasted flavor, you can increase the amount of marshmallows you toast or toast them for a bit longer. If you prefer a sweeter syrup, feel free to add a little extra sugar. The beauty of homemade roasted marshmallow syrup is that you can tailor it to your own taste.
Your turn!
Roasted marshmallow syrup is the perfect way to bring the nostalgic taste of campfires into your kitchen. Whether you use it in your coffee, drizzle it over pancakes, or mix it into cocktails, this syrup adds a sweet, smoky flavor that’s sure to please. Easy to make and incredibly versatile, roasted marshmallow syrup will quickly become a favorite in your pantry. So, gather your ingredients and start roasting those marshmallows—you’ll soon have a syrup that brings the warmth and sweetness of the campfire right to your table.
I prefer to store my simple syrups in mason jars, and use lids like pour lids from Mason Jar Lifestyle. Alternatively, I also like to use these bottles which are aesthetic!
Check Out My Cookbook, Simple Syrups From Scratch!

Simple Syrups From Scratch—your go-to cookbook with 50+ simple syrup recipes. In the world of cooking and baking, simple syrups are a secret ingredient that can elevate your beverages and desserts with just a splash.
The main way I use simple syrups is in coffee, but there are so many other uses: Hot chocolate, Teas, Lemonades, Sparkling water or infused water, Cocktails or mocktails, Drizzle over pancakes or waffles, Add to overnight oats, Brush over cakes or cupcakes to add moisture or sweetness, Use syrups in frosting or glazes, Drizzle over ice cream or yogurt, Add to smoothies or milkshakes, Make salad dressings, Homemade popsicles and so much more!
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Check Out The Pantry Labels

In 2024, I released a set of Pantry Labels with recipes that are dishwasher-safe and fit the lids of mason jars perfectly.
Each labels has the recipe to refill the dry mix jar, as well as the recipe to make the item if applicable.

Roasted Marshmallow Simple Syrup
Ingredients
- 1 cup white sugar
- 1 cup filtered water
- 10 marshmallows
- 1 tbsp vanilla extract
Instructions
- In a toaster oven, lay marshmallows on a baking sheet and toast until golden brown. Flip the marshmallows to toast all sides. Alternatively, thread marshmallows onto a skewer and use a kitchen torch or gas stove to brown the marshmallows.
- While the marshmallows are toasting, in a medium saucepan, combine sugar and water over medium heat. Bring mixture to a gentle simmer, stirring occasionally until the sugar dissolves.
- Stir in the roasted marshmallows, whisk until combined. Simmer for 5 minutes or until the marshmallows have dissolved.
- Remove from the heat and stir in vanilla extract. Let the syrup cool to room temperature. Strain the mixture using a fine mesh strainer, then transfer liquid to a clean container.
- Store the simple syrup in an airtight container in the refrigerator for up to three weeks.
