Preheat your oven to 160c fan / 350F. Get your braising beef and season generously with salt and pepper on all sides. Leave to rest for 10 minutes while you prepare your vegetables and aromatics. Drizzle vegetable oil in an oven-proof pan on medium/high heat and once hot, add in your beef. Fry on each side for 2 minutes until golden and seared. Remove the beef and set aside, reduce heat to medium.
Add in your red onions, garlic, and ginger. Fry for a few minutes until aromatic.
Add back in the beef followed by the light soy sauce, dark soy sauce, ground cumin, 1 tablespoon brown sugar and 500ml water. Give everything a mix, then cover with a lid or aluminium foil and place in a preheated oven 160c fan/350F for 2 hours.
After two hours, the beef should be pull apart delicious! So, tear apart the beef and remove the ginger pieces from the broth. Depending on how much the sauce has thickened, add another 500ml water to create enough broth for our ramen and noodles. Taste and season the broth with ½ tablespoon rice wine vinegar to add some acidity - if needed.
Add instant ramen noodles into your beef pan and place on the hob/stovetop medium heat and place on the lid of the pan to keep in that moisture. Cook the noodles, stirring occasionally, until they're cooked.
Time to serve up! Divide your noodles and beef between two bowls. Ladle over the ramen beef broth and then top with spring onions/scallions, sesame seeds, and pak choi on the side. You can also optionally top with chili oil! Enjoy!