So taking several recipes and combining it all together, i dumped everything into the pot and let it cook away.
Serve either hot or cold, with a side of mash and gravy or in a sandwich like the Reuben sandwich, it has a briny taste despite being being boiled in water with a mixture of ingredients that i will list out below. However at AUD 6 a kg, this will last you many meals if you are on a budget.
All you need is a pot full cold water, put in the beef and the following:
Bay leaves (3-4)
Garlic (4-6 cloves)
Onions (1 chopped roughly)
Ginger (half a knob)
Peppercorns (a small handful)
Kicap manis (2 table spoons)
Boil for 2 hours under low to medium heat. The meat should float once it is cooked.
Some recipes that i have read online, re-use the cooking liquid for cooking vegetables or mix together with a roux as a sauce, while others throw it all away. I threw mine away because i suspect alot of brine was in that water from the beef. The call is up to you. You can always pre boil the beef to get rid of the brine.
So if you are up to cooking some corned beef for a reuben sandwich, well now you know how to make one!