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Under 30 Minutes

Under 30 Minutes

Brown Sugar Buttercream

Use this brown sugar buttercream on our Triple-Layer Apple Cake. If the mixture seems to have separated after all the butter is incorporated, beat on medium-high until smooth. Reduce speed to low; beat 3 minutes more.

  • prep: 25 mins
    total time: 25 mins
  • yield: Makes about 4 cups




  • 4 large egg whites
  • 1 cup packed light-brown sugar
  • 1/4 teaspoon salt
  • 1 1/2 cups (3 sticks) unsalted butter, room temperature, cut into tablespoons


  1. Step 1

    In a heatproof bowl set over (not in) a pan of simmering water, whisk together egg whites, sugar, and salt. Cook, whisking constantly, until the sugar has dissolved and the mixture is warm to the touch.

  2. Step 2

    Transfer to the clean bowl of an electric mixer. Beat on medium speed until fluffy and cooled, about 15 minutes.

  3. Step 3

    Raise speed to high; beat until stiff peaks form. Reduce speed to medium-low; add butter, 2 to 3 tablespoons at a time, until fully incorporated.

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Reviews (6)

  • 22 Mar, 2013

    Delicious until you add the deflates immediately. Adding the butter into the egg whites makes this soupy, but hang in there and KEEP beating. Eventually it does come back together, becoming thick and creamy. Okay for the middle of the cake filling, but I wouldn't use it to frost. Too much like brown sugar-butter. I added a touch of sea salt and 1 tsp caramel flavor to make a Sea Salt Caramel filling for my cake.

  • 13 Mar, 2013

    Taste fabulous

  • 13 Mar, 2013

    This was great until I added the tablespoon of butter. Went right to liquid.

  • 24 Jan, 2013

    I luv it!! Made these for my cupcakes n it was perfect! :)

  • 11 Jan, 2013

    Haven't made it yet, but sounds yummy.

  • 17 Jul, 2012

    Great recipe, i just thought it tasted to buttery when I added one stick of butter. I think it's even better without butter.