In a heated wok/pan with oil over medium-high heat, stir fry the marinated beef until medium rare. Set aside on a plate.
Then use the same wok/pan to cook the satay sauce. Stir fry the shallots and garlic until fragrant. Add in mixed satay sauce and stir fry it together with the aromatics. Add in water (add more or less depending on how thick/runny you want the consistency to be) and bring to a boil.
Add back in the cooked beef and give it a good mix.
Serve the satay beef on top of some cooked instant noodles (make sure to reserve some soup). Mix everything together to have a satay broth. Enjoy!