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Ingredients

Ingredient Checklist

Directions

Instructions Checklist
  • Put egg whites and sugar in the heatproof bowl of an electric mixer set over a pan of simmering water. Whisk constantly until sugar is dissolved and mixture registers 140 degrees on an instant-read thermometer, 2 to 3 minutes.

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  • Transfer bowl to mixer; fit mixer with the whisk. Beat on high until mixture is fluffy and cooled, about 10 minutes.

  • Reduce speed to medium-low; add butter several tablespoons at a time, mixing well after each addition. Add vanilla, and mix until buttercream comes together, 3 to 5 minutes. Reduce speed to low, and mix until buttercream is smooth and no air bubbles remain, about 2 minutes.

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