成分
1/2 onion
1 bay leaf
8 whole black peppercorns
A few parsley stalks
600ml milk50g butter (or margarine)
50g plain flour
烹饪指示
1. Put onion, bay leaf, peppercorns and parsley stalks into a heavy-based saucepan. Pour in milk and bring just to the boil, then remove from the heat and set aside to infuse for 30 minutes. Strain into a jug.
2. Meanwhile, put butter (or margarine) into a separate, clean, heavy-based saucepan. Let it melt over a medium heat, then add flour. Using a wooden spoon, stir continuously and very well until you have a smooth, slightly grainy paste. This is called a roux.
3. Off the heat, whisk a little of the infused milk into the roux, beating well with the wooden spoon, then return to the heat, beating, until thickened. Repeat until half the milk is incorporated, then switch to a whisk. Continue adding the milk (off the heat) and whisking over the heat until smooth.
4. Reduce the heat to low and continue cooking the sauce for 4-5 minutes, until thickened, stirring occasionally. Taste, season, and make sure there is no hint
