Cheese sauce

Let the butter melt and foam well in a tall pot.

Add all the flour at once and mix vigorously to ensure the flour and butter are well combined.

Let it cook for another 2 minutes so you don't get a floury taste.

Add half of the cold milk and whisk vigorously to remove lumps and stir until you have a smooth thick mass.

Now add the rest of the milk and whisk until you have a thick white sauce.

Season with pepper, salt, and grate some nutmeg in.

You can optionally add a few drops of lemon juice to freshen up the sauce.

Now mix in about ¾ of the cheese until it is nicely melted.

Use in lasagnas, in pasta, over steamed vegetables, and finish with the extra cheese.