Need a gluten free stock cube that gives you rich flavour for your Ham dishes? Use a Knorr Ham Stock Cube. Our Ham Stock Cubes offer a carefully selected blend of herbs, seasonings and meat that delicately enhance the natural flavours of your dish. TOP TIP: For Ham & Pea Soup. Use your leftover ham for scrumptious soup. Just add in a our Ham stock cube, peas and water then boil until cooked.