Earl-Grey Sugar-Cookie Dough

In a medium bowl, whisk together flour, tea, baking powder, and salt. In a stand mixer bowl fitted with paddle attachment, beat butter with sugar on medium speed until pale and fluffy, about 2 minutes. Beat in eggs and vanilla. Reduce speed to low; gradually add flour mixture.

Turn out dough; divide into 4 pieces. Flatten each into a rectangle and wrap in plastic. Refrigerate until firm, at least 1 hour and up to 2 days.