Overlapping naming usage — "costillar" can also refer in Argentine usage to the loin-end rib roast (anatomically Prime rib). The dominant retail meaning is the asado plate-rib slab; Prime rib is anatomically the dorsal-rib roasting joint.
Translation takeaway
These are related cuts, but not perfect swaps. Use the table below to judge how close your local option is before buying.
Keep Costillar and Prime rib together in your notebook.
Names by country
| Country | Costillar | Prime rib |
|---|---|---|
| 🇺🇸United States | — | Prime rib |
| 🇬🇧United Kingdom | — | Rib roast |
| 🇫🇷France | — | Côte de bœuf |
| 🇦🇷Argentina | Costillar | — |
| 🇩🇪Germany | — | Hochrippe |