7 cups milk
14 tablespoons butter (1 3/4 cubes)
1 cup plus 2 tablespoons all-purpose flour
salt to taste
1. Bring the milk almost to a boil. Set aside.
2. Melt the butter in a saucepan. When it begins to foam, add the flour, stirring constantly.
3. Let the flour cook in the butter for about 2 minutes. Stir constantly and do not let it brown.
4. Add the milk and begin whisking. Continue to whisk until the sauce becomes thick and smooth. Taste and add salt as needed.