- roll and shape the cookies are advised. Place the individual cookies on a flat tray, cover with wrap and place in the freezer for a couple of hours or until fully frozen. - once frozen, transfer the cookies into a freezer friendly air-tight container, separating each layer with baking paper to make sure they don't stick to each other. - when ready to bake, place the shortbread cookies on a baking tray and bake as advises, with an extra 2 to 5 minutes to allow for the cookies to thaw in the oven.