These homemade keto marshmallows are soft, airy, and surprisingly easy to make with just a few simple ingredients. They have that classic fluffy texture with a light chew, making them perfect for desserts, snacks, or even low-carb s’mores.
What makes this recipe special is how simple it is once you get the steps right. With no sugar and minimal carbs, it’s a great option for anyone following a keto or low-carb lifestyle while still craving something sweet.
Recipe Details
Prep Time: 15 minutes
Cook Time: 5 minutes
Setting Time: 6 hours
Total Time: 20 minutes (plus setting)
Servings: 25 marshmallows
Calories: 18 kcal each
Ingredients
- ½ cup cold water
- 3 tablespoons gelatin (preferably grass-fed)
- ⅔ cup water
- ⅔ to 2 cups xylitol or allulose (adjust based on sweetness preference)
- ¼ teaspoon kosher salt
- 2 teaspoons vanilla extract
Optional Serving Ideas:
- Sugar-free dark chocolate
- Keto graham-style crackers
- Raspberry chia jam
Instructions
- Line a 9×9-inch pan with foil and lightly grease it with coconut oil. Set aside.
- Pour the cold water into a mixing bowl and sprinkle the gelatin over it. Mix lightly and let it sit for 10 minutes to bloom.
- In a saucepan, add the remaining water and sweetener. Heat over medium and bring to a boil without stirring. Let it boil for about 2 minutes until fully dissolved.
- Turn your mixer on low to break up the gelatin, then carefully pour in the hot syrup.
- Increase the speed to high and whisk continuously for about 15 minutes.
- Add the salt around the halfway point and the vanilla extract near the end of mixing.
- Continue mixing until the mixture becomes thick, fluffy, and holds its shape.
- Quickly transfer the mixture into the prepared pan and spread it evenly.
- Let it sit uncovered at room temperature for at least 6 hours or overnight until set.
- Remove from the pan and cut into squares using a lightly greased knife.
Why I Love This Recipe
- Only a few ingredients needed
- Light, fluffy texture just like classic marshmallows
- Low carb and sugar-free
- Perfect for desserts or snacking
Tips & Tricks
Work quickly. Once the syrup is ready, timing matters to get the right texture.
Use a stand mixer if possible. It makes whipping easier and more consistent.
Grease everything lightly. This helps prevent sticking when spreading and cutting.
Let them set fully. Rushing this step can affect the final texture.
Serving Ideas
- Melt into hot chocolate
- Make low-carb s’mores
- Dip in sugar-free chocolate
- Add to desserts or snack plates
FAQs
Can I use erythritol?
Not recommended, as it tends to crystallize and affects texture.
How should I store them?
Keep in a cool, dry place for up to 2 weeks or freeze for longer storage.
Are these truly zero carb?
Net carbs are very low since sugar alcohols are typically excluded, but moderation is still important.
Nutrition (Per Marshmallow)
- Calories: 18 kcal
- Sodium: 25 mg
