Build the Sandwich: Place one Rice Krispies treat on a surface prepared with parchment or a baking sheet with high sides. Scoop about 1 cup of vanilla ice cream onto it, then gently press another treat on top to form a sandwich. Don’t squish too hard—just enough to secure it.

Check Your Work: The ice cream needs to fully come to the edges of the treats; this is where you may need to add more to the edges with your spatula, or even things up as if you were a bricklayer, scraping off extra on one side and adding it where some ice cream might be missing.

Roll in Sprinkles: Roll the edges of each sandwich in the sprinkles until coated on all sides. Press gently so they stick.

Freeze to Set: Place the finished sandwiches on a parchment-lined tray. Freeze for at least 3 hours, or until the ice cream is fully firm.

Serve Cold: Enjoy straight from the freezer if you like a challenge, but a minute or two unwrapped on the counter will help bring back the chewy texture of the treats before diving right in.

Storage Tips: Wrap them individually in plastic wrap for easy grab-and-go snacking and to keep them fresh. Store in the freezer for a month, or double-seal in zipper bags to help keep air out and they should be good for three months.