Bechamel sauce

Ingredients: 

100 gr butter

100 gr flour

1 l milk

salt&nutmeg

Preparation:

Step1:-melt the butter in a saucepan and add the flour making it cook for few minutes (Figure 1&2)

Figure 1

Figure 2

-at this point you got what the French call "roux".
-remove the pan from heat, add milk mixing with a whisk or a wooden spoon (Figure 3)

Figure 3

Step2:-return the pan on low fire and cook the sauce for 10-15 min or the time to thicken the sauce stirring from time to time (Fig 4)

Figure 4