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Reliable White Chocolate Buttercream Frosting

A tall, beautifully piped swirl of creamy white chocolate buttercream frosting in a small white bowl.

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Make this smooth, pipeable white chocolate buttercream frosting using simple steps for your next cake or dessert.

Ingredients

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  • 1 cup unsalted butter, softened
  • 4 cups powdered sugar, sifted
  • 1 teaspoon vanilla extract
  • 1/4 teaspoon salt
  • 6 ounces good quality white chocolate, melted and slightly cooled
  • 2 to 4 tablespoons heavy cream or milk

Instructions

  1. Melt the white chocolate gently using a double boiler or in short bursts in the microwave. Let it cool until it is still liquid but not warm to the touch.
  2. In a large bowl, beat the softened butter with an electric mixer until it is light and fluffy, about 3 minutes.
  3. Gradually add the sifted powdered sugar, one cup at a time, mixing on low speed until combined, then increase speed to medium and beat until smooth.
  4. Add the vanilla extract and salt. Beat briefly to combine.
  5. Slowly pour the cooled, melted white chocolate into the butter and sugar mixture while the mixer runs on low speed. Scrape down the sides of the bowl as needed.
  6. Add the heavy cream or milk, one tablespoon at a time, beating on medium speed until you reach your desired consistency. If the frosting is too stiff, add more cream; if it is too soft, add a little more powdered sugar.
  7. Beat the frosting on medium-high speed for 2 to 3 minutes until it is light and fluffy.

Notes

  • For the smoothest texture, use high-quality white chocolate. Do not overheat the chocolate when melting, as this can cause it to seize or become grainy.
  • If your frosting seems too soft for piping, chill it in the refrigerator for 15 minutes, then briefly re-whip it before using.
  • This frosting pairs well with vanilla cake, red velvet cake, or as a topping for cupcakes.
  • Store leftover white chocolate buttercream frosting in an airtight container at room temperature for up to 3 days, or refrigerated for up to one week. Bring to room temperature and re-whip before using if refrigerated.

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