Keto Berry Marshmallows dusted with powdered erythritol.

Keto Berry Marshmallows (Zephyr)

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They look like gorgeous meringues but are fluffy and soft. Keto Berry Marshmallows, aka Zephyr, are the ultimate marshmallow treat. Filled with antioxidants and love!

If you’ve never had Zephyrs before, you are in for quite some treat! These BEAUTIFUL marshmallows are made with whipped fruit puree and egg white. They are lighter than regular marshmallows and use agar agar as a gelling agent. They originated in the former Soviet Union and are traditionally made with apple puree.

To turn this treat into the healthiest keto marshmallows EVER, we will use low-carb berries and natural, keto-friendly sweeteners. The result is light and soft marshmallows with a pink hue that look special enough for the fanciest tea party!

Make sure to read ALL my tips before making these eye-catching keto marshmallows!

Whipped egg white and berry syrup for Keto Berry Marshmallows.

Berries. I used frozen mixed berries (raspberries, blackberries, blueberries). I have tried using just frozen raspberries in the past and that works, too! Bring the berries, one tablespoon of fresh lemon juice, and erythritol to a low boil. It is important to simmer the berries uncovered for 10 minutes. Then mash the berries and strain them through a fine sieve. The result with be a berry syrup. Chill this syrup in the fridge (about 20 minutes) before proceeding to the whipping step.

Whipping. Similar to making meringue, to make the marshmallows we need to whip egg white. It is important that no yolk finds its way into the white when separating your egg. With the berry syrup and a dash of salt, whip the meringue on high speed until soft peaks appear. This works best with a stand mixer, but a hand mixer works, too.

Prepare your tools. Before you start cooking your gelling mixture, prepare all your tools! Once you add the agar agar to the meringue, your marshmallow mixture with begin to thicken. So, line two large baking sheets (or cutting boards) with parchment paper. Set up a large piping bag with a piping tip (I use Wilton 1M). I love my reusable silicon piping bags! You will pipe the marshmallow fluff onto the prepared baking sheets.

Gelling. We will use agar agar powder to make our marshmallows. Agar is a gelatin-like substance, vegan, and produced from seaweed. Unlike gelatin, it needs to be cooked to activate its gelling properties. Agar agar comes in different strengths. For this recipe you will need a strength of 700g/cm2. In a small saucepan, combine water, agar powder, and allulose, and bring to a boil. Stir until the allulose is dissolved, then stop stirring. On a low boil, cook the mixture for 5 minutes. Remove from heat.

Move quickly. Whisk the meringue on lowest speed, and as soon as the agar agar syrup is off the heat (it should not be off the heat for more than 10 seconds), slowly pour the agar syrup into the meringue. Be careful to aim the agar away from the whisk and bowl. Once you poured in all the agar syrup and whisked it in, you can scrape down the bowl, and beat it for another 3 minutes on HIGH.

Piped Keto Berry Marshmallows

Right away, transfer the marshmallow fluff into your piping bag and start piping roses. You want them to be about 2 inches wide and about 1 inch high.

Waiting. Now it’s time to wait. Let the marshmallows sit at room temperature for about 8 hours. Overnight works great. They will look glossy on top and be soft on the inside. They should come off the parchment paper easily. Dust the keto marshmallows with powdered erythritol, carefully peel them off the parchment paper, and match two marshmallow halves to make a whole marshmallow “sandwich.” SO BEAUTIFUL!

Pipe your own gorgeous Keto Berry Marshmallows!

Dusted Keto Berry Marshmallows.

MORE EYE-CATCHING KETO DESSERTS

Dusted Keto Berry Marshmallows.

Keto Berry Marshmallows (Zephyr)

They look like gorgeous meringues, but are fluffy and soft. Keto Berry Marshmallows, aka Zephyr, are the ultimate marshmallow treat. Filled with antioxidants and love!
4.67 from 3 votes
Prep Time 20 minutes
Setting Time 8 hours
Total Time 8 hours 20 minutes
Course Dessert
Cuisine Keto, Russian
Servings 18 sandwiched marshmallows
Calories 7 kcal

Equipment

  • stand mixer or hand mixer, piping bag and tip

Ingredients
  

Berry meringue

Agar Agar syrup

Instructions
 

Berry syrup

  • In a medium saucepan, combine frozen berries, erythritol, and lemon juice. Over medium heat bring to a simmer and let simmer uncovered for 10 minutes. Mash berries with a potato masher and strain through a fine sieve to remove all the seeds and skin. Chill the remaining berry syrup in the fridge (for about 20 minutes) until cool.
  • Add the chilled syrup and egg white to the bowl of your stand mixer. With the whisk attachment, beat on high speed until a thick meringue with soft peaks forms (this will take about 10 minutes). You can also use a hand mixer.

Agar Agar syrup

  • Before cooking the agar agar syrup, line two large baking sheets (or cutting boards) with parchment paper. Set up a large piping bag with a piping tip (I use Wilton 1M).
  • In a small saucepan, combine the agar agar powder, allulose, and water. Over medium heat, bring the mixture to a boil. Whisk until the allulose is dissolved (then stop whisking). Turn down heat to medium-low, and cook on a low-boil for 5 minutes. Take from heat.
  • Whisk the meringue on lowest speed, and as soon as the agar agar syrup is off the heat (it should not be off the heat for more than 10 seconds), slowly pour the agar syrup into the meringue. Be careful to aim the agar away from the whisk and bowl. Once you poured in all the agar syrup and whisked it in, you can scrape down the bowl, and beat it for another 3 minutes on HIGH.
  • Right away, transfer the marshmallow fluff into your piping bag and start piping roses onto your lined baking sheets. You want them to be about 2 inches wide and about 1 inch high.
  • Let the marshmallows sit at room temperature for about 8 hours. Overnight works great. They will look glossy on top and be soft on the inside. They should come off the parchment paper easily. Dust the keto marshmallows with powdered erythritol, carefully peel them off the parchment paper, and match two marshmallow halves to make a whole marshmallow "sandwich."
  • Store leftovers in an airtight container in the fridge for up to 4 days.

Notes

  1. Instead of using frozen mixed berries, you can also try frozen raspberries.
  2. Make sure that no yolk finds its way into the egg white.
  3. If you use a hand mixer, you may want to ask someone to help you pour the agar syrup in the meringue mixture, while you whisk.

Nutrition

Serving: 1marshmallow “sandwich)Calories: 7kcalCarbohydrates: 2gProtein: 1gFat: 1gFiber: 1gSugar: 1g
Keyword keto dessert, Keto fruit dessert, low-carb desserts
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