This post may contain affiliate links. This blog generates income via ads.
Homemade Toasted Marshmallow Syrup is exactly what it sounds like! It tastes just like the real thing – because it is! Made with broiled marshmallow crème (fluff), water, and a little sugar it’s a simple syrup recipe that evokes the feeling of sitting around a campfire with sticks and a big bag of marshmallows.

Add it to your favorite coffee recipes or make a s’mores mocha any time of year – no chopping wood required!
Here's what you’ll need

Using Marshmallow fluff instead of whole marshmallows
In all my testing of this recipe I found that I got the best results in both flavor and texture from using jarred marshmallow fluff instead of whole marshmallows.
This is because marshmallow fluff doesn’t have gelatin while marshmallows do. That’s how they…y’know…marshmallow.

While the whole mallows would toast up beautifully and break down relatively well in the syrup, the real issue arose when those batches of syrup would cool. Do you see where I’m going with this?
The gelatin would cause the syrup to become gelatinous and try as I might, I just couldn’t get it to work. Less marshmallows meant less toasty flavor, more water meant a weak and flavorless syrup.

Using marshmallow crème and toasting it under the broiler was the key!
So here’s how you do it:
Making Toasted Marshmallow Syrup for Coffee
This is just a brief overview, find detailed instructions in the recipe card below!






It really is that easy. And delicious!

Watch the recipe video!
Toasted Marshmallow Syrup (Using Marshmallow Crème)
Equipment
- Measuring Cups
- Small Saucepan
- Baking sheet
- Fine Mesh Sieve
Ingredients
- 2 cups water
- ½ cup sugar
- 13 ounces marshmallow crème
Instructions
- Preheat your oven's broiler. Line a rimmed baking sheet with parchment paper and set aside.
- In a small saucepan combine 2 cups water with ½ cup sugar and set over medium-low heat. Cook, stirring occasionally, until sugar has dissolved into water, about 5 minutes.
- While that cooks, spread 13 ounces (1 large jar or 2 small jars (which will be 14 ounces, but that's fine)) of marshmallow crème over the parchment paper lined baking tray. This increased surface area will provide more opportunities for toasting!
- Broil the marshmallow crème for 2 – 4 minutes, rotating tray as needed, until it is deeply toasted and golden. Alternatively, you can use a kitchen torch to carefully toast the marshmallow.
- Remove marshmallow crème from oven and carefully transfer to water and sugar mixture.
- Stir to combine and return to heat, brining to a boil and then removing from heat. Steep, stirring occasionally, for 15 – 20 minutes, or until most of the crème has broken down into the simple syrup.
- Pour the marshmallow syrup through a fine mesh sieve, discarding whatever solids are left behind.
- Skim the top of the toasted marshmallow syrup to remove any foam.
- Transfer to a jar, cool to room temperature, and store until ready to use.
Video
Notes
- Syrup can be stored in refrigerator for up to two weeks.
- Makes approx. 2.5 cups syrup
Nutrition









Lee says
Hey there! Do you think this would hold up well with brown sugar instead of the usual granulated white?
Amanda Gajdosik says
Hi Lee,
Yes, I think that would work just fine! And add another layer of flavor!
Amanda