Beef leg bones are the richest source of marrow and sweetness. When simmered for a long time (8 to 24 hours), the bones release collagen, gelatin, and minerals, creating a broth with a rich consistency, a naturally sweet flavor, and a distinctive aroma.
Sturdy structure: The bones are cylindrical, hollow in the center containing marrow, surrounded by layers of strong, durable bone. This is the ideal structure for retaining heat and slowly extracting nutrients during cooking.
Deeply sweet flavor: Broth simmered from leg bones is not only richly sweet but also has a subtle richness, creating an impressive aftertaste for dishes such as Pho, Bun Bo Hue, or European-style stews (Demiglace).
