Step 1

Please see post for thorough details and tips. Have all your ingredients handy, measured out, and make sure you won’t be disturbed for 20 minutes. Seriously! They’re easy and quick, but you need to work through the steps continuously and quickly.

Step 2

Line a 9x9-inch pan with foil and grease well with coconut oil. Set aside. If using a stand mixer, fit it with the whisk attachment; otherwise have your hand mixer handy and ready to go.

Step 3

Pour the cold water (1/2 cup) into your stand mixer's bowl or a large glass bowl. Sprinkle the gelatin in, mix thoroughly with a fork, and allow to bloom for 10 minutes while you melt the sweetener.

Step 4

Pour the remaining water (2/3 cup) into a saucepan, and pour in the xylitol or allulose into the center without stirring (they don't form crystals, but just in case). Bring to a boil over medium heat, allowing the sweetener to completely dissolve by giving the saucepan some light shakes, keeping the mixture at a rolling boil for about 2 minutes. If you've got a thermometer, temperature reaches about 210ºF/100ºC. But don't worry if you don't have one; just be sure to let it boil for about 2 minutes to ensure maximum temperature is reached (sugar alcohols don't have the candy-making properties of sugar, so they don't heat up past a certain point).

Step 5

You'll have to work quickly at this point to ensure no heat is lost. Turn on your mixer on low to break up the gelatin, and quickly pour in your hot syrup (trying to avoid the sides of your bowl so it doesn't cool down). Increase your speed to high, and whisk non-stop for about 15 minutes. Sprinkle in the salt at about minute 8 and the vanilla extract at minute 12 (if you're adding stevia drops, do so at this point). When ready, the mixture will be stiff and hold it's shape well, and if you're using a glass bowl it will feel only lightly warm to touch. The batter with xylitol won't be as fluffy as one with allulose, but it will still be light and stiff.

Step 6

Turn mixer off, and quickly pour the marshmallow batter onto your prepared dish. Don't worry too much about what's left behind in the whisk etc, or your marshmallows will likely set in the bowl itself! Keep in mind that xylitol sets much quicker than allulose, so extra speed is required.

Step 7

Allow your marshmallows to dry, uncovered and at room temperature, for 6 hours or preferably overnight. Gently remove from pan and cut with a greased knife. In my experience keto marshmallows don't need dusting as they're not overly sticky, and a touch of coconut oil does wonders if need be. We did do a light dust of powdered sweetener as they were sticking to the counter while shooting (think summer heat)- so just store the in a cool, dry place for a couple weeks and in the freezer after.