Vanilla Buttercream
- 4 large egg whites at room temperature for 30 minutes
- Rounded 1/4 teaspoon salt
- 2/3 cup water
- 1 1/3 cups plus 2 tablespoons sugar
- 4 sticks (2 cups) unsalted butter, cut into tablespoon pieces and softened
- 2 teaspoons vanilla
- Special equipment: a candy thermometer
- Combine whites and salt in a very large bowl.
- Stir together water and 1 1/3 cups sugar in a 3- to 4-quart heavy saucepan until sugar is dissolved, then bring to a boil over moderate heat, without stirring, brushing any sugar crystals down side of pan with a pastry brush dipped in water.
- When syrup reaches a boil, start beating egg whites with an electric mixer at medium-high speed until frothy, then gradually add remaining 2 tablespoons sugar and beat at medium speed until whites just hold soft peaks.
- (Do not beat again until sugar syrup is ready.)
- Meanwhile, put thermometer into sugar syrup and continue boiling until syrup registers 238 to 242F.
- Immediately remove from heat and, with mixer at high speed, slowly pour hot syrup in a thin stream down side of bowl into whites, beating constantly.
- Beat, scraping down side of bowl with a rubber spatula, until meringue is cool to the touch, about 10 minutes in a standing mixer or 15 with a handheld.
- (It is important that meringue is properly cooled before proceeding.)
- With mixer at medium speed, gradually add butter 1 piece at a time, beating well after each addition until incorporated.
- (Buttercream will look soupy after some butter is added if meringue is still warm.
- If so, briefly chill bottom of bowl in a large bowl filled with ice water for a few seconds before continuing to beat in remaining butter.)
- Continue beating until buttercream is smooth.
- (Mixture may look curdled before all of butter is added but will come back together by the time beating is finished.)
- Add vanilla and beat 1 minute more.
egg whites, salt, water, sugar, unsalted butter, vanilla, thermometer
Taken from www.epicurious.com/recipes/food/views/vanilla-buttercream-109049 (may not work)