Swiss Meringue Buttercream
With its silky-smooth texture, buttery taste, and melt-in-your-mouth quality, this buttercream is a favorite frosting and filling. If you're making ahead of time, be sure to store it away from foods with strong odors.
- Yield: Makes about 12 cups
Source: Martha Stewart Weddings, Winter 2011
- 3 cups sugar
- 12 large egg whites
- 2 pounds (8 sticks) unsalted butter, cut into tablespoons, at room temperature
- 2 teaspoons pure vanilla extract
Put the sugar and egg whites in a clean heatproof mixer bowl, and set over a pan of simmering water. Whisk constantly until the sugar is dissolved and the mixture registers 140 degrees on an instant-read thermometer.
Transfer the bowl to the mixer stand, and whisk on medium-high speed until fluffy and cooled, about 10 minutes. Continue beating until stiff, glossy peaks form.
Reduce the speed to medium-low; add the butter by the tablespoon, beating well after each addition. Beat in the vanilla. The buttercream can be refrigerated in an airtight container for up to 1 week or frozen for up to 1 month. Bring to room temperature before using; beat on low speed until smooth, about 3 minutes.