INGREDIENTS
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8 ounces baking white chocolate
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10 tablespoons unsalted butter, softened
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1 1/3 cup granulated sugar
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4 large eggs
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1 ½ teaspoons vanilla extract
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2 ¼ cup all-purpose flour
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2 ¼ teaspoon baking powder
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¼ teaspoon kosher
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1 ¼ cup whole milk
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For the frosting:
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4 ounces baking white chocolate
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1/3 cup heavy cream
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1 cup unsalted butter, softened
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7 cups confectioners' sugar
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¼ cup heavy cream or milk
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2 teaspoon vanilla extract
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1/8 teaspoon kosher salt