Italian Meringue Buttercream

Ingredients

  • 5egg whites
  • 1 pinch cream of tartar
  • 1 ¼ cups white sugar
  • ⅔ cup water
  • 2 cups unsalted butter, chilled and cubed
  • 1 teaspoon pure vanilla extract
  • Directions

  • Step 1

    Pour egg whites into the bowl of a stand mixer fitted with a whisk attachment; beat on low speed until foamy. Add cream of tartar, increase speed to medium-high, and beat until stiff peaks form.

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  • Step 2

    Combine sugar and water in a small saucepan over medium heat; bring to a boil. Cook until syrup reads 240 degrees F (115 degrees C) on a candy thermometer or until a small amount of syrup dropped into cold water forms a soft ball that flattens when placed on a flat surface.

  • Step 3

    Increase mixer speed to high and pour syrup in a slow and steady stream down the side of the bowl, beating until meringue is no longer steaming, 2 to 3 minutes. Beat in butter one cube at a time until buttercream reaches a soft and spreadable consistency, 3 to 5 minutes. Beat in vanilla extract.

  • Cook's Note:

    For a chocolate hazelnut buttercream, beat a whole container of chocolate hazelnut spread (such as Nutella(R)) into the finished buttercream. It is delicious on a rich chocolate layer cake.

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