My favorite is the one true sandwich, PB&J, but a close second would be the [url=https://youtu.be/iubJ-XSL9go]Jellyfish Sandwich.[/url]
[spoiler]Yes, burgers and stuff like that count too.[/spoiler]
[spoiler]Fades Away[/spoiler]
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Depends... If you consider a hot dog a sandwich, it’s a hot dog. If not, then I second the PB & J