Basic
white sauce is needed for Welsh rarebit, custard or
lasagne.  Proper Sauce Béchamel is made by lovingly
stirring 2 tablespoons of white flour into 2 tablespoons of
butter over a low heat for three or four minutes.  It’s then
cooled and a cup of scalded milk is added.  Into the pan goes
a small onion studded with 2 or 3 cloves and half a bay
leaf.  This is then cooked until thick and smooth, after which
it’s put in a moderate oven for 20 minutes, before straining and
seasoning.  If you’re in a hurry, you can simply stand and stir it
until the sauce has thickened and all the floury flavour has gone.  I
believe sailors usually have other things to do and go for a lowbrow,
non-gastronomic alternative, using cornflour.  It’s incredibly easy
to make well in one pan and yet cookery writers insist on making a
big issue of it, with suggestions for double boilers, pre-heating the
milk, etc, etc, which is a lot of trouble and results in extra
washing up.
The
simplest of white sauces consists of milk, cornflour and either salt
and pepper or sweetening.  After that, all sorts of goodies can be
added, but let’s start from zero.  The following recipe makes
enough sauce to coat a lasagne, provide four servings of custard, and
make a generous amount of Welsh rarebit for two.  Half of the amount would probably be enough for a coating sauce such as cheese sauce for cauliflower.
 
Serves 2
 
Ingredients 
 
2
tbsp cornflour
1
cup (plant)milk
salt
and pepper
 
 Method:
Put
	the cornflour into a small saucepan and add about a quarter of the
	milk.
	Blend
	until all the flour is mixed and a smooth thin paste results.
	Add
	the seasoning and then the rest of the milk.  Mix again.
	Put
	the pan over a medium-high flame and stir the sauce constantly
	and fairly briskly until it starts to thicken. (You can tell that
	this is going to happen when it starts coating the side of the pan
	and the back of the spoon.)
	Still
	stirring, lower the heat and let the sauce boil.
	Once
	it’s boiling, continue cooking and stirring for one full minute
	and then remove the pan from the heat.  This ensures that the starch
	is properly cooked.  If it isn’t, it spoils the flavour of the
	sauce.
Notes
For
best results, you need a first-rate saucepan.  Too many stainless
steel ones cook unevenly with the result that the sauce goes into
lumps.  If you have any doubts about your pan, use a
flame-tamer and as low a heat as your patience will permit.  Even
with a whisk, once lumps have formed they’re almost impossible to
remove.  If using dried milk, add it as you mix in the
cornflour, so that it dissolves when you heat the water.
This
method guarantees you a smooth, cooked, white sauce.  Food reformists object to using
cornflour, because it’s super refined and has no nutrition apart
from carbohydrate.    Proper cooks
use white flour instead of cornflour, in many instances, saying that
it gives a better appearance – a sauce made with cornflour has a
sheen on it that you may not want.  If either of these are your view, you can use
white wheat flour instead of cornflour, but it will need about ten minutes
cooking and really should be blended with a knob of butter,
over a low heat before you start, to reduce the floury taste. Once it’s been brought to the boil, you do
not need to stir continually, 
but keep an eye on it in case it catches and burns.  You need 2
tbsp plain flour for 1 tbsp of cornflour and you might want
to have white flour on board, just for this purpose, so that you don’t have brown
bits in your white sauce, but white flour is not as nutritious as
whole wheat.
Best alternative: However, in my opinion by far the best way of making a quick Béchamel sauce, which has more flavour than that made with conrflour, cooks more quickly than that made with wheat flour and looks more attractive than either, is to use gram (chickpea) flour.  This gives the sauce a delicate hint of yellow,
which looks very appetising.  
 
Ingredients
 
  4 tbsp of gram flour 
knob of butter or 1 tbsp oilive oil
1 cup (plant) milk
1/2 tsp onion powder 
 salt and pepper
 
Method:
- Melt the butter or warm the oil in a small saucepan, over a medium heat.  Mix in the gram flour and cook gently for a few minutes.
 - Add about 1/4 cup of milk and blend
carefully, ensuring that there are no lumps. Then add the rest of the milk and the onion powder and raise the heat slightly and bring to a slow boil. Season with salt and pepper to taste.
 - Gram flour can sometimes go through a lumpy stage as it thickens: just keep on stirring untl it's smooth.  It needs longer cooking longer than cornflour, but 5 minutes
after it's become smooth should be plenty.  Taste it and see.  Raw gram flour tastes unpleasant - you will easily taste if it needs more cooking.  Adjust seasoning.
 
Note:- In fact 'white' sauce made with gram flour doesn't really need milk, because there is more flavour in the sauce, anyway.  This is an advantage for vegan cooks, who may not have plant milk on board.
 
 The
above recipes will give you an exceedingly boring and bland white
sauce.  Personally, I think white sauce is pretty boring at the best
of times and have never been able to see the logic of dumping a cup
of it on an innocent cauliflower.  The following suggestions and
variations will help turn it into something that complements the rest
of the food.
 
Variations:
- The
	first thing you can do to improve it is to add a large knob of
	butter with the seasoning.  Once you have your confidence, you can actually
	melt this first and then stir the cornflour into it.  A dollop of
	olive oil also enriches it.   
 - If
	you have the patience, it’s well worth infusing the milk with
	flavourings. A tea infuser is useful for this: put a broken bay
	leaf,
	and a pinch of whatever herbs
	you fancy into the infuser and leave it for ten minutes or so in
	very hot milk. If you want something even better, a piece of onion,
	a garlic
	clove, a chunk of carrot,
	a couple of pieces of parsley,
	some mushroom
	stems, some broken cinnamon,
	a blade of mace
	– any or all of these can add a bit of character to a basic sauce.
	Put them in the cold milk and bring gradually to simmering point.
	Don’t boil or you’ll end up with a skin to deal with. Cover the
	milk while the flavours infuse, so that it stays warm longer. Be
	careful with mushrooms if you want a white
	white sauce, because they can colour it. Strain through a sieve
	before using. If you have any light-coloured vegetable stock, this
	is a good addition: mix it with dried milk.
 - 
Cheese.
	Oh, lovely, wonderful cheese!  I dare say you can buy really good vegan cheese in large, cosmpolitan cities.  I have yet to find any, but as mentioned below, there is an acceptable alternative vegan sauce.  A generous addition will turn this
	boring gloop into a delightful adjunct to your vegetables and make
	an instant meal with pasta. Choose a cheese with a pretty strong
	flavour and grate away.  A quarter of a cup will add interest; half
	a cup is about the minimum to give it a definite flavour. 
 - Vegan
	cheese sauce can be made
	by substituting a couple of tbsp of nutritional
	yeast for the real thing. 
	I’ll be honest, it won’t be as good, but it will still be a vast
	improvement on white sauce.  However, if you go to the trouble of
	infusing the milk and then add 1/2
	tsp lemon juice
	and 1/2
	tsp dijon mustard,
	it will be much improved.  Add olive oil or vegan ghee to substitute for the fat in the cheese.
 - Lemon
	juice.
	A tablespoon of this will add savour to your very basic sauce and
	complement carrots, for example. If you’re using a fresh lemon,
	add some of the rind,
	grated. This has much more oomph than the juice and adds a little
	colour. With the addition of honey, you will end up with a sweet
	sauce to go with puddings.
 - 
	Dried
	or mixed mustard,
	Worcestershire
	sauce, chilli:
	all these can be added to a standard white sauce to enhance the
	flavour, without substantially altering the texture. They will alter
	the colour, however.
 - 
	Green
	peppercorns,
	celery
	salt, dried minced garlic,
	and fresh or dried herbs
	will introduce a lot more character into the sauce, but will spoil
	the pure, unsullied whiteness, if this matters.
 - 
	If
	you add two, chopped, hard-boiled eggs,
	some chopped parsley
	and the
	rind and juice of half a lemon,
	pour it over cauliflower
	and sprinkle with a cup of breadcrumbs,
	fried in olive oil
	or butter, you end up with Cauliflower
	à la Polonaise.
	This turns the cauliflower into a main course and is great with
	deep-fried
	chunks of
	potato
	or Oven
	chips. Broccoli,
	courgettes,
	etc can be given the same treatment.
 - 
	A
	tablespoon or two of Dijon mustard
	makes for
	a very pleasant sauce with burgers.
 - 
	Fresh
	mushrooms
	fried in butter
	or olive oil,
	can be added to make a quick pasta sauce. Season with 1 tsp crushed
	green
	peppercorns,
	½ tsp tarragon
	and/or dill
	(weed) and a clove of garlic.
	You could add a chopped onion
	and fry it with the mushroom, if you like. If you feel confident
	about making white sauce, the mushrooms can be fried in the saucepan
	and the cornflour added to that, to ensure that none of the
	delicious flavour is wasted. Use cream
	and you have a meal fit for a king!
 - 
	For
	a sweet sauce, omit salt and pepper and after the sauce is
	thickened, stir in a tbsp of honey
	and return to the heat. It can be further flavoured with vanilla
	essence, lemon
	juice or rind, orange
	juice or rind, rum,
	whisky,
	cocoa,
	coffee,
	etc.  Brown
	sugar
	or treacle
	can be used instead of honey, for a different flavour – and
	colour.
 - 
	For
	extra richness, incorporate some cream.
	After the sauce has boiled, allow it to cool a little and then
	gently stir in the cream. If you need to reheat it, do so very
	gently so that it doesn’t boil, otherwise the cream may curdle.
 - 
	For
	custard,
	or lasagne,
	an egg,
	beaten in, adds extra richness. The easiest way to ensure that this
	doesn’t curdle, is to do the same as with cream. If the sauce is
	too thick, add a little more milk and heat it very carefully. 
 
 
Edit: 26/4/25