Need a gluten-free stock cube that gives you rich flavour for your Casseroles and Stews? Use a NEW Knorr Rich Beef Stock Cube. Our Rich Beef Stock Cubes are made with a carefully selected blend of herbs, seasonings and meat juices that delicately enhance the natural flavours of your dish. TOP TIP: For a rich, flavoursome casserole brown the meat and saut� the onions and vegetables. Then add some stock made with a Knorr Rich Beef Stock Cube and cook until meltingly tender.