The Preparation
Place one cookie inside a 3-inch round cutter on a flat surface.
Scoop a generous amount of ice cream on top of the cookie.
Use an offset spatula to spread and push the ice cream into all the cracks and edges.
Place a second cookie on top, bottom-side down.
Use the offset spatula to smooth the ice cream around the sides.
Wrap in aluminum foil.
Place in freezer for at least 5 minutes (ideally overnight) to set.