beef sirloin (500 g) • pork bones (500 g) • beef meatballs (about 5 pieces, 200 g) • onion • round rice noodles (bánh canh, 1.5 kg) • Bean sprouts, scallions • bún bò seasoning mix • lemongrass • Seasoning powder, sugar, salt, fish sauce, black pepper, garlic, chili peppers