01 -  If using homemade cookies, allow them to cool completely before assembling. 
 02 -  Line a baking sheet with parchment paper or a silicone mat. 
 03 -  Place 8 cookies, flat side up, on the prepared sheet. 
 04 -  Scoop about 60–75 g (¼–⅓ cup) of softened vanilla ice cream onto each cookie. 
 05 -  Gently press a second cookie, flat side down, onto the ice cream to form a sandwich. 
 06 -  For added flair, roll the sides of each sandwich in your choice of mini chocolate chips, sprinkles, or chopped nuts. 
 07 -  Place assembled sandwiches back on the baking sheet and freeze for at least 1 hour, or until firm. 
 08 -  Serve immediately after freezing or wrap individually in parchment and store in the freezer for up to 1 month.