Swiss Buttercream

March  1, 2016
Photo by Catherine Lamb
Author Notes

An easy buttercream that starts with a Swiss meringue. It turns out very white and light and airy, which makes it great for tinting with color and layer cakes. —Erin McDowell

  • Makes about 4 cups
  • 6 ounces (about 4 large) egg whites
  • 12 ounces (1 3/4 cup minus 1 tablespoon) sugar
  • 1 pound (2 cups) unsalted butter, at room temperature
  • 1 1/2 teaspoons vanilla extract
In This Recipe
  1. Prepare an electric mixer by fitting it with the whip attachment. Bring a medium pot filled with a few inches of water to a gentle simmer.
  2. Combine the egg whites and sugar in the bowl of an electric mixer, and place over the pot of water. Heat, stirring constantly so the eggs don’t scramble, until the mixture reads 160° F on a thermometer.
  3. When the egg and sugar mixture has come to temperature, transfer the bowl to the mixer. Whip on high speed until the mixture reaches stiff peaks and the bowl is no longer noticeably warm to the touch. The meringue should be smooth and glossy, not clumpy or dry.
  4. While the mixer is running, gradually add room temperature butter in 1/2-tablespoon chunks. Continue adding and mixing until all of the butter is incorporated and the buttercream is light and smooth. If the buttercream looks curdled or separated, continue whipping for a few minutes—it should come together.
  5. Beat in the vanilla and mix to combine. The buttercream can be used immediately or refrigerated in an airtight container.

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