How do I turn off the html interpretation?

I wanted to post some raw html code but it is then interpreted. How can I turn off the interpretation?

Preformatted text on the toolbar, which outputs a block delimited by 3 backticks, with an optional language for highlighting. (plain, text, html, xml, javascript, etc)

 ```plain
 My Code

But generally people should post larger blocks of text on pastebin/hastebin or similar. The preformatted text is only intended for snippets.

Thanks!
(it was a short snippet)