Add water, beef bones and steak to a slow cooker and set to medium setting for 8 hours or overnight. Let cool. Take out the meat and strain the broth through a cheesecloth.
Add onion and ginger to a frying pan and cook on a medium high heat, stirring occasionally. Put on a clean cheesecloth when soft, golden and fragrant.
In the same frying pan, add anise seeds, fennel seeds, cardamom, cinnamon sticks, coriander seeds and cloves and cook, stirring constantly, for a minute. Add to a cheesecloth with onion and ginger.
Using kitchen twine, wrap the spices, onion and ginger in the cheesecloth, add to a simmering bone broth and cook for 10 minutes. Once cooked, take out the cheesecloth and discard.
Add coconut aminos, salt and pepper to the broth.
(Optional) In a medium pot add rice noodles to a boiling water and cook for 3 minutes. Rinse under cold running water and drain thoroughly.