Yet simultaneously, it's a soup with low-fat content, so fatty bone-in meats like oxtail will render an unbalanced result. Instead, beef knuckles are the best-suited ingredient for the job; their ...

That said, I discovered the best beef cut to use is something bony, be it beef bones like knuckle bone or, if you're willing to splurge a little, cuts of oxtail or marrow bone. When simmered over time ...