1/2 cup (1 stick) unsalted butter, cut into pieces, room temperature
1 pound confectioners' sugar, sifted
Directions
In the bowl of an electric mixer fitted with the paddle attachment, beat cream cheese and vanilla until light and creamy, about 2 minutes. With mixer on medium speed, gradually add butter, beating until incorporated.
Reduce mixer speed to low. Gradually add sugar, beating until incorporated. Use immediately, or cover and refrigerate up to 3 days. Bring to room temperature before using.
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