What is khvost in the USA?

“khvost” in Russia maps to canonical oxtail (round: Tail, cross-cut into round sections). In United States, look for labels such as Oxtail. The tail, cut into thick cross-sections exposing a central bone surrounded by rich, gelatinous meat. One of the most universally recognized cuts across all cultures. Ideal for slow braising — produces extraordinarily rich, collagen-heavy broth.