Variations:
Thumbprint Cookies: Cut out the dough without a hole in any of the cookies. Instead, using the back of an ice cream scooper, or even a boiled egg, indent each cookie to make thumbprint cookies. Once the raw cookies are on the baking sheet(s), fill the indention with mint jelly. The cookies are done once the cookies cool and the jelly sets.
Peanut Butter: Make Milk Chocolate Ganache which is easier to make than white chocolate ganache, and fill the holes in the cookies with a mixture of peanut butter sweetened with sifted confectioners’ sugar.
https://glutenfreerecipebox.com/gluten-free-sandwich-cookies/