Ingredients

4 cups unbleached all-purpose flour 

1/4 cup finely ground Earl Grey tea 

1 teaspoon baking powder 

1 teaspoon kosher salt 

2 sticks unsalted butter, room temperature 

2 cups sugar 

2 large eggs, room temperature 

2 teaspoons pure vanilla extract

Preparation

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.