These are really great to make up a few batches ahead and keep separately in the freezer.I know they will keep for at least 2 months. I have never kept them any longer than that. When the nieces and nephews come over as they do when their parents shop or long cold snowy winter days.All the children, mine included,I assign cooking stations, give paper chefs hats, provide a personalized apron, you kind pick them up cheaply at any craft store, along with iron-on lettering. You can bake homemade cookies without a lot of fuss!