Lightly flour a surface and turn the dough out onto it.
Divide the dough equally into two portions. Then shape each portion into two logs with a diameter of around 1 ¼ inch (3 cm) and about 4 ¾ inch (12cm) in length.
Wrap each log in plastic wrap and chill until firm, about 45 to 60 minutes.
Unwrap the chilled logs. Then using a sharp knife, slice the logs into ⅜ inch (1cm) thick slices.
Position the oven rack in the middle of the oven. Preheat the oven to 350° F / 180° C (160° C fan) Line a baking sheet with a silicone mat or parchment paper (baking paper)
Arrange the sliced cookies on the lined baking sheet, about ½ inch (2cm) apart. (Note 4)
Bake for 20-25 minutes, rotating the baking tray halfway through baking, until golden and just firm. Remember that the cookies will continue to crisp up as they cool.
Let the cookies cool on the baking sheet for 2 minutes, then transfer them onto wire racks to cool completely.