The remaining ½ cube can be wrapped tightly and used for another recipe. If you prefer to use 1 cube, you may need to season to taste with extra salt. Use around 175g/6oz frozen sweetcorn or ...

Stir in the flour, mustard powder and cayenne pepper. Beat until smooth, then cook for a further 1–2 minutes, stirring all the time. Strain the milk into a jug and gradually add it to the pan ...