Vegan Italian Meringue Buttercream

A pale cloud of sweetness, glossy and whisper-light, that melts into the mouth like a remembered sigh. The scent of caramelized sugar and warm vanilla, cool as dawn; a vegan buttercream that feels like silk folded into velvet. Simple technique yields something quietly luxurious.

Why make this recipe

This Vegan Italian Meringue Buttercream is a lesson in patience and refinement: it lifts the humble aquafaba into a satiny meringue, then folds in dairy-free butter until the texture is opulent yet ethereal. It offers stability for piping and enough tenderness to sit gently on a crumb without collapsing — a pastry artist’s quiet triumph.

How to make Vegan Italian Meringue Buttercream

Ingredients:

  • 110g of chickpea brine (aquafaba)
  • 140g of granulated or caster sugar
  • 30ml of water
  • 1/4 teaspoon of cream of tartar
  • 125g of dairy-free butter or vegan shortening
  • 25g of icing sugar
  • Additions: Biscoff spread, Vegan Nutella, Melted chocolate

Directions:

  1. Pour the chickpea brine into a small saucepan and place on low or medium heat. Reduce to half the original amount, aiming for 55g.
  2. In another saucepan, combine 100g of sugar and all the water. Heat until the mixture reaches 116 degrees Celsius (240 degrees Fahrenheit).
  3. In a clean bowl, whisk the reduced aquafaba with cream of tartar on high for 5-8 minutes until soft peaks form.
  4. Gradually add the remaining 40g of sugar while whisking until glossy.
  5. Slowly drizzle the sugar syrup into the aquafaba mixture while whisking, and continue until the mixture cools.
  6. Add the dairy-free butter gradually, whisking until thick and incorporated.
  7. Finally, add icing sugar and any desired flavor additions, continue whisking for another 2 minutes.
  8. Transfer the buttercream to a piping bag and decorate cupcakes or cakes as desired.

The choreography here is essential: warm syrup meeting aerated aquafaba, patience as gloss builds, and the butter folded in until the texture is both rich and feather-light. Let the meringue cool enough before the butter goes in — it must not be hot, or the butter will melt; it should feel like the warmth of a late summer afternoon, not a flame.

How to serve Vegan Italian Meringue Buttercream

Spoon or pipe this buttercream onto cupcakes, layer it between calico-soft sponge rounds, or spread it over a vegan carrot cake for contrast: the buttercream’s fine, silky texture brings a cooling sweetness that offsets spiced cakes, zests, and bitter chocolate. For plated desserts, use a small palette knife to make soft swoops and finish with a sprinkle of toasted hazelnuts, freeze-dried raspberries, or a thin shave of dark chocolate.

How to store Vegan Italian Meringue Buttercream

Keep in an airtight container in the refrigerator for up to 5 days; before using, bring it to room temperature and re-whip briefly to restore the silk. For longer storage, freeze in portions for up to one month; thaw overnight in the fridge, then gently whisk to revive the texture.

Tips to make Vegan Italian Meringue Buttercream

  • Use a clean, grease-free bowl and whisk: any fat will prevent the aquafaba from foaming properly.
  • Reduce the aquafaba slowly and watch the weight — aim for 55g precisely for reliable structure.
  • Use a thermometer for the sugar syrup; the 116°C (240°F) stage is why this meringue gains its gloss and stability.
  • When adding butter, keep the meringue cool but slightly warm; too cold and the butter won’t blend, too warm and it will melt. Add butter in small pieces and be patient.
  • If the buttercream curdles, cool the bowl slightly and continue whisking; often it will come back together. A splash of cold dairy-free milk can help smooth it if needed.

Variations

  • Chocolate swirl: fold in 20–30g of melted, cooled vegan dark chocolate for a ripple of cocoa.
  • Cookie butter: gently warm 50g of Biscoff spread and fold through for a spiced, caramel note.
  • Hazelnut-chocolate: mix in 40–50g of Vegan Nutella for a nutty, decadent profile.
  • Citrus lift: add 1–2 teaspoons of finely grated orange or lemon zest for brightness, keeping it minimal to preserve the meringue’s silk.

FAQs

Q: Can I use liquid from other canned beans instead of chickpea brine?
A: Chickpea brine (aquafaba) is preferred because of its protein and starch balance that whips to a stable foam. Other bean liquids may work unpredictably; chickpea is the reliable classic.

Q: My buttercream separated or looks curdled after adding the butter — what can I do?
A: Often this is a temperature issue. Place the bowl over a cold surface or in the fridge for a few minutes, then whisk steadily; the emulsion usually comes back. If stubborn, add a teaspoon of cooled reduced aquafaba or a small splash of plant milk and whisk.

Q: Can I make this buttercream ahead for an event?
A: Yes. Refrigerate in an airtight container up to 5 days, or freeze portions up to a month. Thaw and re-whip to restore texture before using.

Q: Is cream of tartar necessary?
A: It stabilizes the aquafaba, helping achieve a glossy, resilient meringue. Without it, whipping can still work, but the result may be less stable.

Q: Can I flavor the syrup or meringue directly (vanilla, coffee, etc.)?
A: Flavor the finished buttercream with extracts, zests, or folded spreads for controlled intensity. Alcohol-based extracts can sometimes affect structure if used in large amounts, so add sparingly.

Conclusion

If you crave a recipe that balances technique with tenderness, this Vegan Italian Meringue Buttercream rewards a slow hand and an attentive heart. For a complementary step‑by‑step perspective you might enjoy a detailed recipe from Addicted to Dates, and for an alternative method and notes on texture, see a helpful how-to from The Little Blog of Vegan.
Baking, after all, is an act of waiting — a patient turning of sugar and air into something quietly perfect.

Vegan Italian Meringue Buttercream

A luxurious vegan buttercream that combines aquafaba and dairy-free butter for a silky, stable frosting perfect for various desserts.
Prep Time 30 minutes
Cook Time 15 minutes
Total Time 45 minutes
Servings: 10 servings
Course: Dessert, Frosting
Cuisine: Italian, Vegan
Calories: 150

Ingredients
  

For the Meringue
  • 110 g chickpea brine (aquafaba) Reduced to 55g
  • 140 g granulated or caster sugar Split into two parts: 100g for syrup and 40g for meringue
  • 30 ml water Used for making the sugar syrup
  • 1/4 teaspoon cream of tartar Stabilizes the meringue
For the Buttercream
  • 125 g dairy-free butter or vegan shortening Should be at a cool room temperature
  • 25 g icing sugar For sweetness and texture
Flavor Additions (optional)
  • Biscoff spread For a spiced note
  • Vegan Nutella For a nutty flavor
  • Melted chocolate For chocolate flavor

Method
 

Preparation of Aquafaba
  1. Pour the chickpea brine into a small saucepan and place on low to medium heat to reduce to half the original amount (aim for 55g).
Making Sugar Syrup
  1. In another saucepan, combine 100g of sugar and all the water. Heat until the mixture reaches 116 degrees Celsius (240 degrees Fahrenheit).
Whipping the Meringue
  1. In a clean bowl, whisk the reduced aquafaba with cream of tartar on high for 5-8 minutes until soft peaks form.
  2. Gradually add the remaining 40g of sugar while whisking until glossy.
Combining Ingredients
  1. Slowly drizzle the sugar syrup into the aquafaba mixture while whisking, and continue until the mixture cools.
  2. Add the dairy-free butter gradually, whisking until thick and fully incorporated.
  3. Finally, add icing sugar and any desired flavor additions, continuing to whisk for another 2 minutes.

Notes

Use a clean, grease-free bowl and whisk to ensure aquafaba foams properly. Store in an airtight container in the refrigerator for up to 5 days; bring to room temperature and re-whip before using. For long-term storage, freeze portions for up to one month.