* In the bowl of a mixer, cream together the cream cheese and the butter. Beat in the egg, then the vanilla. Beat in the cake mix until completely combined. Cover and refrigerate for at least 2 hours.
* Preheat the oven to 350 F.
* Roll the chilled dough into tablespoon siaed balls. Roll in confectioners' sugar, and place on an ungreased baking sheet. Bake in the preheated oven for 12 minutes. Remove to a wire rack to cool.
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