Title: Hearty Beef Ribs Nilaga: A Comforting Filipino Soup

Rinse the beef ribs and blanch them in boiling water for 5-10 minutes to remove any impurities. Drain and set aside.
Sauté Aromatics:

In a large pot, heat the vegetable oil over medium heat. Sauté the onion and garlic until fragrant and translucent, about 3-5 minutes.
Simmer the Beef:

Add the beef ribs to the pot, followed by about 8 cups of water. Bring the mixture to a boil, then lower the heat to a simmer. Let it cook for 1.5 to 2 hours, or until the beef is tender and the broth is flavorful.
Add the Vegetables:

Add the potato, corn, and plantain (if using) to the pot. Continue to simmer for about 15-20 minutes until the vegetables are tender.
Season the Broth:

Add the fish sauce, salt, and pepper to taste. You can also add the lemongrass at this point for an aromatic twist. Simmer for another 10 minutes.
Add the Greens:

Add the green beans, carrots, and chopped cabbage (or bok choy). Let the soup cook for another 5-7 minutes until the greens are tender but still vibrant.
Serve:

Once everything is cooked, remove the pot from the heat. Taste and adjust the seasoning if necessary.
Serving and Storage Tips: