How much of the easyout is protruding from the hole? I have had minor success using a sharp punch to tap a deep broken easy out in the reverse direction and got it to come out, very slowly.
Other than that, there are rescue bits available. I have seen blokes weld a couple of dobs of metal onto broken studs and use that to get a grip with vice grips, but the easyout might just get more brittle and snap again.
https://the-original-rescue-bit.myshopify.com/