Foolproof White Sauce

Directions

1. 1
   Put the butter in a pot, and melt it, being careful not to burn it.
2. 2
   Add the flour to Step 1, and cook over low heat using a wooden spatula.
3. 3
   From now on, mix the bottom of the pot constantly!
4. 4
   Continue cooking until it's no longer floury and it becomes runny and white.
5. 5
   It will look like the picture in Step 4.
6. 6
   When the mixture becomes white and smooth, add 1/2 of the milk, and warm it up.
7. 7
   When the mixture lumps together, add the remaining milk, and warm it up.
8. 8
   Switch from the wooden spatula to a whisk, and mix well.
9. 9
   Cook through completely, mix, and when the mixture becomes smooth, it's done!
10. 10
    I used this for one of the main sauces for lasagna.