- Put the cornflour into a small saucepan and add about a quarter of the milk. Stir well until the mix is smooth. Add the rest of the milk.
- Put the pan over a moderate heat and start to cook, stirring constantly. If you leave it even for a moment, once it starts to thicken, it will form lumps that are just about impossible to get rid of.
- Reduce the heat, add the cheese, Worcestershire sauce or mustard and season with salt and pepper.
- Put the gram flour into a small saucepan and add about a quarter of the milk. Stir well until the mix is smooth. This will take some time and you may prefer to use a whisk. You don't want to start cooking until you've got rid of all the lumps. Add the rest of the milk.
- Put the pan over a moderate heat and start to cook, stirring constantly. As the sauce starts to thicken lower the heat and stir vigorously. It will start to form alarming lumps, but if you keep stirring they will disappear.
- When the sauce is smooth, reduce the heat again and add the nutritional yeast and mustard and season with salt and pepper.
- * I ought to mention that Worcestershire sauce, at least the original and peerless product made by Lea & Perrin's, contains a very small amount of anchovies. Considering that you merely shake a few drops into the sauce, the amount of anchovies must be about homoeopathic, but if you take your vegetarian principles seriously, I suppose you should avoid it. Sadly, I have found all the alternative brands to be significantly inferior.
- I find the gram flour is sufficiently creamy that I don't need to add plant milk. However, you may well prefer the taste.
- You can, of course, use gram flour in the first recipe, instead of cornflour.
- If you are trying for an elegant result, use white pepper instead of black, to avoid little black flecks in the sauce.
- If you have any fresh herbs, chop them and sprinkle over the top.
- To use the sauce in a flan or lasagne, I suggest making more and making it thicker. So double the amount of flour and use one and a half times the liquid.