Pork knuckle jelly

Jelly from pork knuckle turns out rich, meaty, thick and very tasty. A knuckle is a pork shin or forearm. For the jelly, I advise you to use the limb itself, just trim the claws.

Ingredients:
Pork knuckle — 1-1.5 Kilograms,
Onion — 1 Piece,
Carrot — 1 Piece,
Bay leaf — 2 Pieces,
Garlic — 1 Piece (head),
Salt — To taste,
Peppercorns — To taste,