Italian Buttercream

March 1, 2016

Test Kitchen-Approved

Author Notes:

One of my favorite frostings for layer cakes (it's very light and airy) and for tinting with color (it's very white and bright).

Erin McDowell

Makes: about 4 cups


  • 6 ounces (about 4 large) egg whites
  • 12 ounces (1 3/4 cup minus 1 tablespoon) sugar
  • 6 ounces (3/4 cup) water
  • 1 pound (2 cups) unsalted butter, at room temperature
  • 1 1/2 teaspoons vanilla extract
In This Recipe


  1. Place the egg whites in the bowl of an electric mixer fitted with the whip attachment.
  2. Combine the sugar and water in a medium pot and stir over medium heat until it comes to a boil. When it begins to boil, stop stirring and attach a candy thermometer to the pot (if any sugar crystals have washed up on the sides, brush them away using a pastry brush dipped in cool water). Continue to cook the syrup until it reaches 240° F (final desired temperature).
  3. As soon as the sugar hits 230° F, begin whipping the egg whites on medium-high speed. The goal is to have the egg whites at soft peaks when the sugar reaches the 240° F.
  4. With the mixer running, add the sugar syrup in a slow, steady stream. Continue to 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.
  5. With the mixer still 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.
  6. Beat in the vanilla and mix to combine. The buttercream can be used immediately or refrigerated in an airtight container.

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Reviews (4) Questions (0)

4 Reviews

Wilmer May 10, 2018
How can I replace the homemade sirup with sirup karo?
Caroline N. August 1, 2016
I tried making this frosting last night and it was super soupy. Did my butter get too warm?
Gina March 16, 2016
I can't Waite to try some of these delicious looking recipes .
Cindy March 8, 2016
This is a great recipe for me as I make a lot of hollandaise and freeze the whites. Usually after about a dozen frozen whites I make macaroons or Pavlova. I just happen to have a container of 4 whites in the freeze. Time for a chocolate cake and your icing. Here I go..............