Dough: Wrap it in cling film and freeze it for up to 3 months. Defrost in the fridge. Dough balls: Freeze them individually arranged on a baking sheet. Once they are solid, transfer them to freezer bags. You can bake them from frozen; just add a few more minutes to the baking time. Baked cookies: Place them in a single layer on a baking tray lined with parchment paper. Once solid, transfer to freezer bags. Defrost at room temperature; it will not take long, especially if you take them out of the bag and place them on a plate in a single layer.