Italian Meringue Buttercream (Printable Version)
A silky, stable buttercream whipped from Italian meringue and butter, ideal for cakes and cupcakes.
# What You'll Need:
→ Italian Meringue
01 - 1 cup granulated sugar
02 - 1/4 cup water
03 - 3 large egg whites, room temperature
04 - 1/4 teaspoon cream of tartar
→ Buttercream
05 - 1 1/2 cups unsalted butter, room temperature, cubed
06 - 1 teaspoon vanilla extract
07 - Pinch of fine salt
# Directions:
01 - Combine granulated sugar and water in a medium saucepan. Heat over medium, stirring gently until the sugar has fully dissolved.
02 - Increase heat to medium-high and cook without stirring until the syrup registers 244°F on a candy thermometer.
03 - In a stand mixer fitted with a whisk attachment, begin whipping egg whites with cream of tartar on medium speed until soft peaks form.
04 - Once the syrup reaches 244°F, set the mixer to medium speed and carefully drizzle the hot syrup down the side of the bowl into the whipping egg whites in a slow, steady stream.
05 - Increase mixer speed to high and whip until the meringue is glossy, stiff, and the mixing bowl feels cool to the touch, approximately 10 minutes.
06 - With the mixer running on medium speed, add butter cubes one at a time, allowing each piece to fully incorporate before adding the next. If the mixture appears curdled, continue beating — it will emulsify and come together.
07 - Add vanilla extract and a pinch of fine salt. Beat until the buttercream is smooth, creamy, and fluffy.
08 - Use immediately for frosting, or transfer to an airtight container and refrigerate. Before reuse, bring to room temperature and rewhip until smooth.
# Expert Hints:
01 -
- Once you master this, every other frosting will feel like a compromise because nothing else comes close to this texture.
- It holds up beautifully in warm weather, pipes like a dream, and tastes like a cloud made of vanilla and butter.
02 -
- If your buttercream looks soupy or separated, pop the whole bowl into the fridge for ten to fifteen minutes, then whip it again and watch it come back to life.
- The most common reason this fails is adding butter to meringue that is still warm, so touch the outside of the bowl and if there is any warmth at all, keep waiting.
03 -
- Weigh your egg whites instead of counting eggs because sizes vary wildly and precision is what separates a good batch from a great one.
- Clean your mixer bowl and whisk with a splash of vinegar or lemon juice before starting, because even a trace of fat or yolk will prevent the whites from reaching their full volume.