A stock cube is a small cube made from concentrated stock or broth ingredients. It is used to easily add flavor to cooking, especially in making soups, stews, or sauces. Full definition
Heat your vegetable broth in a large pot (ideally make your own, otherwise use an organic vegetable stock cube with freshly filtered water). (bainmarieblog.com)
Next time I think I will add a splash of red wine and will put two stock cubes in for a bit more flavor. (bbcgoodfood.com)
I no longer use stock cubes which were certainly convenient. (cantillonkitchen.com)