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Close-up of a stainless steel mixing bowl filled with thick, glossy ivory Italian Meringue Buttercream frosting showing firm peaks.

Italian Meringue Buttercream: The Secret to Silky, Glossy Professional Frosting

Master the art of Italian Meringue Buttercream with this professional guide. Achieve a thick, glossy, ivory frosting that is perfectly aerated, stable, and featuring beautiful vanilla bean specks for the ultimate cake finish.
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Prep Time 10 minutes
Cook Time 20 minutes
Total Time 30 minutes
Servings: 1 batch (approx. 5 cups)
Course: Dessert, Topping
Cuisine: French, Italian
Calories: 180
Ingredients Equipment Method Notes

Ingredients
  

Frosting Components
  • 1 1/2 cups Granulated Sugar 300g
  • 1/2 cup Water 120ml
  • 5 large Egg Whites 150g, room temperature
  • 1/2 tsp Cream of Tartar 2g
  • 2 cups Unsalted Butter 454g, high-quality, slightly softened
  • 1 tbsp Vanilla Bean Paste 15ml, for visible specks
  • 1/4 tsp Sea Salt 1g

Equipment

  • 1 Stand Mixer With whisk and paddle attachments
  • 1 Candy Thermometer Essential for tracking sugar syrup temperature
  • 1 Silicone Spatula For folding and checking texture

Method
 

Cook the Sugar Syrup
  1. Combine sugar and water in a saucepan over medium-high heat. Do not stir once it begins to boil. Monitor with a candy thermometer until it reaches 240°F (115°C).
Whip the Meringue
  1. While syrup cooks, whip egg whites and cream of tartar in a stand mixer until soft peaks form.
  2. With the mixer on medium-low, slowly pour the 240°F sugar syrup down the side of the bowl in a steady stream.
  3. Increase speed to high and whip until the meringue is stiff, glossy, and the bowl is cool to the touch (approx. 10-15 minutes).
Emulsify with Butter
  1. Switch to the paddle attachment. Add butter one tablespoon at a time on medium speed until the frosting becomes smooth and voluminous.
  2. Mix in the vanilla bean paste and salt. Run on low for 5 minutes to remove air bubbles and achieve a reflective texture.

Notes

Ensure the bowl is completely grease-free before starting.
If the mixture curdles, just keep whipping; it will eventually emulsify.