Ingredients

　　2 1/4 cups all-purpose flour

　　3/4 cup packed dark-brown sugar

　　2 1/4 teaspoons ground cinnamon

　　3/4 teaspoon coarse salt

　　1/2 cup plus 2 tablespoons (1 1/4 sticks) unsalted butter, room temperature

　　Whisk together flour, brown sugar, cinnamon, and salt; cut in the butter using a pastry blender, your fingertips, or two table knives until combined but still crumbly. Refrigerate 30 minutes before using.

　　Martha Stewart's Cupcakes