A classic Russian confection, Zephyr is a feather-light, pillowy sweet made from whipped apple puree and egg whites bound with agar-agar. Unlike dense American marshmallows, these cloud-like treats have a delicate vanilla aroma and a soft, slightly chewy texture that melts on the tongue. Traditionally served dusted with powdered sugar and often paired with chocolate, they are a beloved treat across Russia.
Prep Time25 mins
Cook Time15 mins
Total Time40 mins
Servings8
Yield8 marshmallows
Nutrition Facts
Per serving (estimated)
- 95 kcalCalories
- 0.2 gFat
- 0 gSaturated Fat
- 23 gCarbs
- 1 gFiber
- 21 gSugar
- 1.5 gProtein
- 15 mgSodium
- 60 mgPotassium
- 8 mgCalcium
- 0.2 mgIron
- 3 mgVitamin C
- 15 mcgVitamin A
Ingredients
For the apple base
- 500 g tart apples (such as Granny Smith), peeled, cored, and quartered
- 100 ml water
- 150 g granulated sugar
- 1 tbsp fresh lemon juice
- 1 pinch of fine salt
For the syrup and assembly
- 8 g agar-agar powder
- 150 ml water
- 250 g granulated sugar
- 2 large egg whites, at room temperature
- 1 tsp vanilla extract
- 2 tbsp powdered sugar, for dusting
Directions
- Place the apples in a saucepan with the 100 ml water, cover, and simmer over medium-low heat for 15 minutes until very soft. Drain off any excess liquid and let cool slightly.
- Puree the warm apples with the granulated sugar, lemon juice, and salt until completely smooth. Measure out 250 g of puree and reserve any extra for another use.
- In a small heavy saucepan, whisk together the agar-agar and 150 ml water and let bloom for 5 minutes. Bring to a boil while whisking, then add the sugar and cook over medium heat, stirring, until the syrup reaches 110°C (230°F) on a candy thermometer, about 5 minutes.
- In a stand mixer fitted with the whisk attachment, beat the egg whites on medium speed until they form soft peaks.
- Reduce the mixer speed to low and slowly pour the hot agar syrup into the whites in a thin, steady stream. Once incorporated, increase speed to high and beat for 5-7 minutes until the mixture is thick, glossy, and forms stiff peaks that hold their shape.
- Add the apple puree and vanilla extract to the meringue and gently fold together with a spatula until fully combined and the batter holds a ribbon when lifted.
- Transfer the mixture to a large piping bag fitted with a round or star tip. Pipe mounds about 5 cm wide onto parchment paper, leaving space between each.
- Let the zephyrs dry uncovered at room temperature for 24 hours until the surface forms a thin crust and they hold their shape when lifted.
- Just before serving, dust the tops with powdered sugar and serve as is, or sandwich two halves together with melted dark chocolate.
Cook’s Notes
- Use very tart apples for the best natural pectin and balanced flavor; Granny Smith or Antonovka are the most traditional choices.
- Agar-agar must be boiled to activate properly; it will not set if simply bloomed in cold liquid.
- A candy thermometer is essential: undercooked syrup causes the zephyrs to collapse, while overcooking makes them rubbery.
- The apple puree should be cool (not hot) before folding into the meringue, or the heat will deflate the whites.
- Store finished zephyrs in an airtight container at room temperature for up to 3 days; avoid refrigeration as it causes weeping and a gummy texture.










