These sugar-free marshmallows are a great keto-friendly alternative to traditional ones—perfect for roasting, baking, or dropping into a warm cup of hot chocolate. Made with just a few low-carb ingredients, they turn out soft, airy, and perfectly sweet without any added sugar. Once you try them, you’ll see how simple it is to make homemade keto marshmallows that taste just like the real thing.

Nothing beats a warm cup of hot chocolate on a chilly day, especially when it’s topped with fluffy, homemade sugar-free marshmallows. These marshmallows are made without sugar or corn syrup, making them a great choice for anyone following a keto or low-carb lifestyle.
They’re perfect not just for cozy nights in, but also for camping trips, holiday treats, or any time you’re craving something sweet and light without spending hours in the kitchen. Whether you’re toasting them over a fire or melting them into your favorite drinks, these low carb marshmallows are a must-try!
- 1 What Are Marshmallows?
- 2 Are Marshmallows Keto-Friendly?
- 3 Why Are You Going To Love These Healthy Low Carb Marshmallows
- 4 Ingredients For Keto Marshmallows
- 5 How To Make These Sugar-Free Marshmallows
- 6 Tips For Making The Best Sugar-Free Marshmallows
- 7 How To Enjoy These Gluten-Free Marshmallows
- 8 Storing Ideas
- 9 Frequently Asked Questions
- 10 More Keto Dessert Recipes
- 11 Sugar-Free Marshmallows
What Are Marshmallows?
Marshmallows are one of the most popular and well-loved sweets around the world. Traditionally, they are made by whipping together gelatin, sugar, and water into a light, fluffy mixture that sets into a soft, airy texture.
Once firm, marshmallows are often cut into squares or shapes, dusted with cornstarch or powdered sugar to prevent sticking, and enjoyed as-is. They’re also commonly used as fillings in desserts, melted into hot drinks, or toasted over a fire for a classic treat.
Are Marshmallows Keto-Friendly?
Regular marshmallows are not keto-friendly because they’re made with sugar, corn syrup, and other high-carb ingredients that can spike blood sugar and knock you out of ketosis.
The good news? You can make your own keto marshmallows at home using naturally low-carb ingredients like gelatin, sugar-free sweeteners, and water. They taste just as fluffy and delicious as store-bought ones but contain a fraction of the carbs, making them perfect for anyone following a keto or low-carb lifestyle.
Why Are You Going To Love These Healthy Low Carb Marshmallows
- Super easy to make at home – just a few ingredients and about 20 minutes of prep.
- Light, fluffy, and airy texture – just like traditional marshmallows, without all the sugar.
- Perfectly sweet with zero sugar – made with keto-friendly sweeteners.
- Only 1g net carbs per serving – enjoy them guilt-free anytime.
- Can be made ahead of time – store them for snacking, baking, or topping drinks.
- No artificial ingredients or preservatives – just clean, simple ingredients.
- Great for roasting, melting, or adding to hot chocolate – they hold their shape and melt beautifully.
- Customizable – add vanilla extract, cocoa, peppermint, or your favorite flavors.
- Kid-approved and great for parties – a fun treat for the whole family.
- Naturally gluten-free and dairy-free – fits many dietary needs.
Ingredients For Keto Marshmallows
You only need 5 simple ingredients to make these soft and fluffy sugar-free marshmallows — and you probably have them all in your kitchen already:
- Water – used to bloom the gelatin and help everything mix together.
- Gelatin Powder – this is what gives marshmallows their signature texture. Any unflavored gelatin will work.
- Sweetener – use your favorite low-carb sweetener like allulose (best for texture), erythritol, or monk fruit blend. Allulose makes the softest, most authentic marshmallows.
- Vanilla Extract – for classic marshmallow flavor. You can also try almond extract, peppermint, or even maple extract for fun variations.
- Powdered Sweetener – helps to prevent sticking by dusting the marshmallows once set. Use a keto-friendly powdered sweetener or blend your granulated one in a coffee grinder.
How To Make These Sugar-Free Marshmallows
Once you see how simple it is to make your own sugar-free marshmallows at home, you’ll skip the store-bought versions for good. Just follow these easy steps:
- Bloom the gelatin: In a mixing bowl, add the gelatin powder and pour in half of the water. Stir and let it sit for 10 minutes to bloom.
- Make the syrup: In a small saucepan, combine the remaining water and sweetener. Heat over medium heat and bring it to a gentle boil. Let it simmer for 2–3 minutes, then remove from the heat.
- Whip the marshmallow base: Start mixing the bloomed gelatin on low speed for 30 seconds using a hand or stand mixer. Slowly pour in the hot syrup and vanilla extract while mixing. Increase the speed to high and beat for 10–12 minutes, or until the mixture becomes thick, white, and forms stiff peaks.
- Transfer to a pan: Lightly grease or line a square pan with parchment paper. Use a spatula to transfer the marshmallow mixture into the pan and smooth out the top.
- Chill: Refrigerate the marshmallows for at least 6 hours, or overnight, until fully set.
- Cut and coat: Once set, remove from the pan and cut into squares using a sharp knife. (Tip: Wet or oil the knife to prevent sticking.)
- Dust and enjoy: Roll each marshmallow piece in powdered sweetener to coat and prevent sticking.
Tips For Making The Best Sugar-Free Marshmallows
- Don’t overmix the marshmallow mixture once it reaches stiff peaks. Overmixing can make it too thick and sticky, making it hard to spread into the pan and resulting in a tougher texture.
- Work quickly once whipped. The mixture starts to set fast, so have your pan prepared ahead of time and spread it immediately after mixing.
- Grease your tools. Lightly grease your spatula and hands, or use a bit of coconut oil or butter to prevent sticking while spreading and shaping.
- Wet your knife before cutting to get clean, neat slices. You can also use a pizza cutter dusted with powdered sweetener for easy cutting.
- Let them set fully. Chill the marshmallows in the fridge for at least 6 hours or overnight to firm up completely and develop the perfect texture.
- For roasting: Since sugar-free marshmallows can melt differently than traditional ones, it’s best to toast them using a kitchen torch rather than an open flame. This gives you that classic toasted exterior without melting them too quickly.
- Flavor it up! You can add other extracts like peppermint, almond, or maple for fun variations. A few drops go a long way.
- Add color (optional): For festive treats, swirl in some natural food coloring at the end of whipping before spreading into the pan.
How To Enjoy These Gluten-Free Marshmallows
One of the best things about these homemade sugar-free marshmallows is how versatile they are. Here are some tasty ways to enjoy them:
- Snack on them as-is – They’re soft, fluffy, and perfect for satisfying a sweet craving anytime.
- Top your hot chocolate or coffee – They melt beautifully and add a cozy, creamy touch to your favorite warm drinks.
- Make keto-friendly s’mores – Use keto graham crackers and sugar-free chocolate for a fun treat.
- Add them to low carb cereal or granola – Great for a fun texture contrast and a little sweetness.
- Use them in baking – Stir them into keto cookie dough or mix into brownies before baking for extra gooey bites.
- Dip them in chocolate – Melt some sugar-free chocolate and dip your marshmallows halfway for a sweet snack or edible gift.
Storing Ideas
- Fridge – Store your sugar-free marshmallows in an airtight container lined with parchment paper to prevent sticking. Keep them in the refrigerator for up to 7 days for the best texture and freshness. Make sure the container is sealed well so the marshmallows don’t dry out or absorb fridge odors.
- Freezer (optional) – While it’s not necessary, you can also freeze the marshmallows if you want to keep them longer. Place them in a single layer on a baking sheet until frozen, then transfer to a freezer-safe bag. Thaw at room temperature for a few minutes before enjoying. Note: freezing may slightly change the texture.
Frequently Asked Questions
Can I Make These Sugar-Free Marshmallows Ahead Of Time?
Sure, you can make these marshmallows ahead of time since they can be stored for several days.
Can I Freeze These Marshmallows?
Yes, these marshmallows are also freezer-friendly. To freeze them, arrange the marshmallows in a single layer on a pan lined with parchment paper to ensure that they don’t stick, and store them in the freezer. Once solid, transfer them to an airtight container or freezer bag and store them in the freezer for up to 2 months.
To thaw them, place the marshmallows in the fridge overnight.
Can I Roast These Sugar-Free Marshmallows?
These marshmallows won’t roast the same as those from stores, but if you still want to do it, if you want to obtain a better result, make sure that you allow them to dry out as long as possible.
More Keto Dessert Recipes
- Keto Peanut Butter Cups
- Keto Fudge
- 2 Ingredients Keto Chocolate Truffles
- World’s Best Fudgy Keto Brownies Recipe (1g net carb!)
- Keto Oreo Cookies Recipe (2g net carbs)
Sugar-Free Marshmallows
Description
Ingredients
- 1 cup water
- 2 tbsp gelatin powder unflavored
- 1 cup Allulose powdered
- 1 tbsp vanilla extract
Instructions
- Prepare the pan: Line an 8×8-inch pan with parchment paper and set it aside.
- Bloom the gelatin: In a small bowl, add ½ cup of water and sprinkle the gelatin powder on top. Whisk to combine, then let it bloom for 10 minutes.
- Heat the sweetener mixture: In a small saucepan over medium heat, add the remaining ½ cup of water, powdered sweetener, and a pinch of salt. Bring to a simmer and stir constantly for about 5 minutes, or until the sweetener has fully dissolved. Then remove it from heat.
- Whip the mixture: Add the bloomed gelatin to the bowl of a stand mixer (or use a hand mixer). Turn the mixer to low speed and slowly pour in the hot sweetener mixture. Increase the speed and beat for 10–12 minutes until the mixture becomes light, fluffy, and forms stiff peaks (similar to whipped egg whites).
- Transfer and chill: Quickly pour the marshmallow mixture into the prepared pan and smooth the top with a rubber spatula. Work fast, as the mixture sets quickly.
- Refrigerate: Place the pan in the fridge and let the marshmallows set for at least 6 hours or until firm.
- Cut and dust: Once fully set, use a sharp knife to cut into squares. Dust each piece with keto powdered sweetenerto prevent sticking.
How do we calculate the nutrition info?
These nutrition facts listed are determined using nutrition information from the USDA Food Database. Our nutrition facts are accurate, but if you are using different products, please make your calculations. Net carb count is calculated by subtracting both fiber and sugar alcohols because they don’t raise blood sugar.