A recipe for homemade Toasted Marshmallow Syrup! Toasted marshmallows are combined with a simple syrup for a flavorful addition to coffee and other favorite drinks.
Since making the Vanilla Bean Syrup a few months ago, I have been playing around with other homemade flavors and this Toasted Marshmallow Syrup has regularly made it into the rotation.
It is great on its own stirred into coffee, but I also like using it as the base for a S’mores Latte! This recipe yields a little over one cup of syrup which has been perfect for 1-2 people over a couple of weeks.
Granulated sugar and water are simmered together to form a simple syrup, then combined with miniature toasted marshmallows.
After whisking until smooth, the mixture is removed from heat and allowed to cool to room temperature. Do not stir it at this point. You want the syrup to separate and form a foamy layer on top.
Strain the liquid and discard the foam/toasted pieces before mixing in the vanilla extract and a small pinch of salt.
Transfer the syrup to an airtight container and refrigerate for up to two weeks.
A Few Toasted Marshmallow Syrup Tips
For 1 cup (240 milliliters) of coffee, I usually add about 1-2 tablespoons (15-30 milliliters) of syrup.
Adjust the amount as needed to taste. It is also delicious in hot chocolate, cocktails, and milkshakes.
I made the Toasted Marshmallow syrup with mini marshmallows to get as much toasted flavor as possible (and it was easier to simply spread out in one layer instead of turning the larger ones), but you can also switch them out for about 6-8 larger marshmallows that have been toasted on all sides.
Make sure to whisk the marshmallows into the hot syrup until completely melted and smooth before removing from heat.
Looking for more recipes with marshmallows?
Try my:
- Rocky Road Cookies
- Berry Rice Krispies Treats
- Flødeboller (Danish Chocolate-Covered Marshmallow Puffs)
Toasted Marshmallow Syrup Recipe
Adapted from Crumb
Toasted Marshmallow Syrup
Ingredients
- 1 cup (240 milliliters) water
- 1 cup (200 grams) granulated sugar
- 2 cups (113 grams) miniature marshmallows
- 1 teaspoon vanilla extract
- Pinch salt
Instructions
- In a medium saucepan, combine the water and granulated sugar. Bring the mixture to a boil, then reduce heat to a simmer and cook, whisking occasionally, until the sugar is dissolved and the liquid is starting to thicken slightly, 10-15 minutes.
- While the syrup is simmering, arrange the miniature marshmallows in a single layer on a foil-lined baking sheet and broil until well toasted.
- Reduce the heat on the simmering syrup to low and scrape in the toasted marshmallows. Whisk until the marshmallows are fully melted and smooth. Remove from heat.
- Allow the syrup to cool to room temperature. Do not stir at this point to allow the syrup to separate.
- Strain the syrup through a fine mesh sieve, whisk in the vanilla extract and small pinch of salt, then store in an airtight container in the refrigerator for up to two weeks.
Anita
This syrup makes my homemade coffee latte tastes so much better. Thanks for sharing this lovely syrup recipe. 🙂
Kasandra
I’ve made this twice now for my morning ice coffee and it’s simple yet delicious! Definitely will make it many more times to come.
Mary
This looks great! I have yet to make it, but I was wondering why you recommend storing it in the fridge? I’m hoping to mail a coffee-themed gift, so I want to know if this could be an option for that or not.
Tara
Thanks Mary! I just say that to be safe since there are no additives in the syrup. I can’t guarantee anything at room temperature and usually keep mine in the refrigerator to delay mold growth.
Heather
This is so tasty. I’ve been using it in my iced coffee and it’s delicious! I’m making another batch tomorrow!
Tara
So happy to hear! Thank you Heather!
Haley
Could I use marshmallow fluff instead of marshmallows?
Tara
Hi Haley! I have not personally tried this with marshmallow fluff.
Suzanne
Delicious! Such an easy recipe. Will be using this for my cold brew coffee.
Tara
Thank you Suzanne! So happy to hear!
MichelleL
I used brown sugar instead and didn’t strain it. I won’t even add vanilla next time personally. I LOVE this recipe
Tara
Thanks Michelle! Sounds amazing with the brown sugar.
Barbra peck
Good morning, I chose another different idea with your recipe! Cane sugar and even stevia sugar. The stevia doesn’t do well at all. Don’t try, it was an idea for family that are diabetic. Not good, so all other ways are amazing thank you. We will have to be just attentive on how much we use!
Hope
Great flavor but I followed the directions to a t and by the time it had cold to room temperature, the syrup was so thick that you couldn’t even strain it. I had to add about half a cup of water just to thin it down enough to strain it.
Tara
Hi Hope, so sorry to hear. What type of marshmallows did you use? Did you stir the mixture after removing from heat?