@vicgrinberg To me they look like faggots, but I imagine no American would call them that because of the meaning in US slang.

Here's the OED definition:

"A ball or (occasionally) patty of chopped or minced meat (esp. pig's liver or other offal), mixed with bread, suet, herbs, etc., and sometimes wrapped in caul fat."

There's probably quite a bit of regional variation about what's supposed to go in them. I think there are other local dialect names for them, but I can't remember those.