This amaretti cookies recipe is totally freezer-friendly. To freeze unbaked cookies, transfer them on a baking sheet in the freezer for an hour, then transfer them to a ziplock bag and freeze for up to one month. To bake them after freezing, let them thaw for 2-3 hours in the refrigerator, roll them in powdered sugar, then bake them. To freeze baked cookies, place them on a baking sheet in the freezer for an hour, then transfer them to a ziplock bag and freeze them for up to two months.