Mix the mince, salt, oil, pepper and thyme all thoroughly together in a bowl and then press into burgers (lightly oiling your hands can help). Place the shaped burgers on a plate and set them in the fridge for atleast 30 minutes.
Grill on a BBQ or hot griddle for around 4 or 5 minutes aside (depending on how thick you make them) and then allow them to rest before serving, ensuring that they are cooked properly and not raw in the middle.