Serves 8-10 people:
- 100 gr butter
- 100 gr flour
- 1 liter milk
- Melt the butter in a heavy-bottomed saucepan.
- After, add the flour and cook, sirring constantly, until the paste cooks and bubbles a bit.
- Add the milk slowly, continuing to stir. Add salt, nutmeg and pepper to taste.
- When the sauce starts to boil, it will thicken and it will ready.
To cool this sauce for later use, cover it with a transparent film over it to prevent a skin from forming.