We all like getting ahead of baking, particularly around the holidays, but as you’ve likely discovered, some baked cookies freeze better than others.
As a guideline, cookies that have a low amount of sugar, such as shortbread, freeze very well, and cookies with a great deal of sugar, such as lace cookies, freeze poorly. Once frozen and thawed, the sugar in cookies becomes fluid, making cookies seem soft or even sticky. The more sugar in the cookies, the softer the cookies are once they’re thawed.