Italian Meringue Buttercream (Printable)
Silky-smooth, stable frosting with delicate sweetness, ideal for cakes and cupcakes.
# What You'll Need:
→ Sugar Syrup
01 - 1 cup granulated sugar
02 - 1/4 cup water
→ Egg Whites
03 - 4 large egg whites (about 1/2 cup), at room temperature
04 - 1/4 teaspoon cream of tartar (optional, for stability)
05 - 1/4 teaspoon salt
→ Butter
06 - 1 1/2 cups (3 sticks) unsalted butter, at room temperature, cut into cubes
→ Flavoring
07 - 1 to 2 teaspoons pure vanilla extract
# How to Cook:
01 - Combine sugar and water in a small saucepan. Stir gently to moisten the sugar, then heat over medium heat without stirring until the syrup registers 240°F on a candy thermometer.
02 - While the syrup heats, place egg whites and cream of tartar in the bowl of a stand mixer fitted with the whisk attachment. Beat on medium speed until foamy, then add the salt.
03 - Once the syrup reaches 240°F, immediately remove from heat. With the mixer running on medium-high speed, slowly drizzle the hot syrup into the egg whites in a thin, steady stream, pouring along the side of the bowl to avoid the whisk.
04 - Increase the mixer speed to high and continue whipping until the meringue holds stiff, glossy peaks and the mixing bowl feels cool to the touch, approximately 10 minutes.
05 - Switch to the paddle attachment. With the mixer on medium speed, add the cubed butter one piece at a time, allowing each addition to fully blend before adding the next. If the mixture appears curdled, keep mixing — it will come together smoothly.
06 - Pour in the vanilla extract and continue beating until the buttercream is silky and uniform. If the consistency is too soft, refrigerate briefly, then re-whip to the desired texture.
07 - Use the buttercream immediately to frost cakes or cupcakes, or transfer to an airtight container for storage.
# Expert Advice:
01 -
- The texture is impossibly silky, far superior to any American buttercream you have ever tasted.
- Once you master the sugar syrup, the rest is simply patience and a sturdy stand mixer.
02 -
- Undercooked sugar syrup will leave your buttercream soupy and weeping, so invest in a reliable candy thermometer and calibrate it before starting.
- Adding butter before the meringue is completely cool causes instant melting and a broken texture that is difficult to rescue.
03 -
- Weigh your egg whites rather than counting eggs because white volume varies significantly and precision matters more than you think.
- Cut your butter into uniform cubes before starting so you can add them quickly and evenly without fumbling mid process.