In a large bowl add the ground beef, onions, carrots, milk, water, flour, chicken stock powder, and eggs.
Stir all the ingredients until well combined. Be careful not to over stir as the fat will start to leave the main mixture.
Preheat a flat top grill or a griddle to a hot temperature, add the oil.
Ladle or spoon the burger patty mixture onto the grill plate and cook until brown and firm, about 6 minutes, then flip. Cook the other side until brown.