Ampersand in Title

No matter how I try to escape it, an ampersand in the title keeps getting replaced with “amp” or “Amp” in both the title tag and the page title.
Surely there’s a way to do this without having to add custom filter code?

I have no issues with ampersands in the content, and I don’t even want the ampersand in the url, it’s just that the title needs to include an ampersand.