
This vanilla pumpkin marshmallow coffee syrup transforms ordinary coffee into a luxurious fall-inspired treat without the coffee shop price tag. The combination of creamy marshmallow, real pumpkin, and warm spices creates a silky syrup that blends perfectly into hot or iced coffee.
I created this recipe during a particularly chilly autumn weekend when I was craving something special but didn’t want to leave the house. Now my morning ritual includes this syrup, and friends always request a jar when they visit during pumpkin season.
Ingredients
- Marshmallow spread: Adds a creamy sweetness and silky texture that dissolves beautifully in hot drinks
- Canned pumpkin: Provides authentic pumpkin flavor and creamy body look for 100% pure pumpkin not pumpkin pie filling
- Light brown sugar: Contributes deep caramel notes that complement the pumpkin perfectly
- Water: Helps thin the syrup to the right consistency for mixing into beverages
- Heavy whipping cream: Creates richness and mouthfeel that makes coffee taste professionally crafted
- Pumpkin pie spice blend: Offers warm fall flavors in one convenient mix use a fresh blend for the best flavor
- Vanilla extract: Enhances all other flavors and adds aromatic complexity pure extract provides the cleanest flavor
- Fine sea salt: Balances sweetness and amplifies all other ingredients just a tiny pinch makes everything taste more vibrant
Step-by-Step Instructions
- Combine Base Ingredients:
- Add marshmallow spread, canned pumpkin, brown sugar, water, cream and pumpkin pie spice to a medium saucepan. Use a medium saucepan rather than a small one to prevent bubbling over and to give yourself room to stir thoroughly. The marshmallow will initially resist combining, but continue stirring gently until it begins to melt.
- Warm And Dissolve:
- Heat the mixture over low heat while stirring constantly for about 5 minutes. The key here is patience with low heat. If the mixture gets too hot, the sugars might crystallize or the dairy could separate. Watch for the brown sugar to completely dissolve which indicates the syrup is ready. The mixture should be smooth and uniform with no visible sugar granules.
- Add Finishing Touches:
- Remove from heat completely before adding the vanilla and salt. Adding vanilla while the mixture is too hot can cause the delicate flavors to evaporate. Stir thoroughly to ensure even distribution of these final flavor enhancers. The mixture will appear slightly thinner when hot but will thicken as it cools.
- Cool Completely:
- Allow the syrup to cool in the pan without disturbing it. Rushing the cooling process can affect the texture. Once room temperature, transfer to a clean storage container. The syrup will continue to thicken slightly as it chills in the refrigerator.
The marshmallow spread is my secret weapon in this recipe. Most coffee syrups just use simple syrup, but the marshmallow creates a silky mouthfeel that makes coffee taste like it came from an expensive café. My daughter actually calls this our "special morning magic" and gets excited whenever she smells the pumpkin spices warming on the stove.
Serving Suggestions
This syrup transforms both hot and iced coffee into seasonal treats. For hot coffee, add 1-2 tablespoons to freshly brewed coffee and stir well. The heat helps the syrup distribute evenly. For iced coffee, blend the syrup with a small amount of hot coffee first, then add ice and cold coffee to prevent uneven mixing.
The syrup also works beautifully in non-coffee applications. Try stirring it into hot chocolate, chai tea, or even drizzling over vanilla ice cream. My personal favorite is adding a tablespoon to warm milk for a caffeine-free evening treat that tastes like pumpkin pie in a mug.
Storage Tips
The syrup should be stored in a clean glass jar or bottle with a tight-fitting lid. Mason jars work perfectly for this purpose. Always use a clean spoon when dispensing the syrup to prevent introducing bacteria that could shorten its shelf life.
While the syrup stays fresh for about a week in the refrigerator, you can extend its life by freezing portions in an ice cube tray. Once frozen, transfer the cubes to a freezer bag. Each cube is approximately one tablespoon, making it easy to thaw just what you need for a single serving.
Customization Options
The base recipe is wonderfully adaptable to personal preferences. For a dairy-free version, substitute the heavy cream with coconut cream or your favorite plant-based creamer. The marshmallow spread can be replaced with 1/4 cup maple syrup plus 1 tablespoon cornstarch for a similar texture without the marshmallow flavor.
Spice lovers can increase the pumpkin pie spice or add individual spices like extra cinnamon or a pinch of cardamom for more complexity. For a deeper flavor profile, try using dark brown sugar instead of light, or add a tablespoon of molasses for rich, caramelized notes.

Recipe FAQs
- → How long does this coffee syrup last in the refrigerator?
This pumpkin marshmallow coffee syrup will last up to one week when stored properly in a clean jar or bottle in the refrigerator. Make sure the container is airtight to maintain freshness.
- → Can I substitute the marshmallow spread with something else?
While marshmallow spread provides the distinctive texture and flavor, you could substitute with marshmallow fluff or even try a combination of honey and vanilla if needed. The texture and flavor profile will be different, but still delicious.
- → Is this syrup suitable for non-coffee beverages?
Absolutely! This versatile syrup works wonderfully in hot chocolate, chai tea, steamed milk, or even drizzled over pancakes, waffles, or ice cream for a seasonal flavor boost.
- → Can I make this syrup with fresh pumpkin instead of canned?
Yes, but you'll need to roast and puree fresh pumpkin first, then strain out excess moisture. For convenience and consistent results, canned pumpkin (not pumpkin pie filling) is recommended.
- → How can I adjust the sweetness of this syrup?
You can easily modify the sweetness by adjusting the amount of brown sugar. Start with less and taste as you go, or add a bit more for a sweeter profile. The marshmallow spread also contributes sweetness, so keep that in mind.
- → What's the best way to incorporate this syrup into coffee drinks?
Add 1-2 tablespoons to hot coffee and stir well. For cold drinks, mix the syrup with a small amount of hot water first to help it dissolve, then add to iced coffee. It also works beautifully in espresso-based drinks like lattes and cappuccinos.