Salt dry aged for a minimum of 30 days for exceptional flavour. Cooking on the rib bone enhances the flavour further and provides an excellent show piece, designed for sharing. M&S prime Aberdeen angus beef, specially selected for marbling and flavour and traceable back to every farm and animal. Always British. The Aberdeen Angus Côte de boeuf steak is hand cut by our expert butchers and renowned for its marbling, enhancing the flavour and giving a succulent finish.