
Ingredients:
1/2 cup butter
1/2 cup flour
1/2 cup milk
Salt to taste
Procedure:
Make a mixture of butter and flour.
Cook a few minutes (take care not to brown the flour) and moisten with milk.
Stir with a whisk until boiling.
Season with salt.
Cook gently for 30 minutes, taking care that it does not brown.
Strai...