Parsley sauce is a cream sauce seasoned with parsley. It is essentially a simple

béchamel sauce Bechamel sauce ( ) is a sauce traditionally made from a white roux (butter and flour in a 1:1 mixture by weight) and milk. Bechamel may also be referred to as besciamella (Italy), besamel (Greece), or white sauce (U.S.). French, Italian and Gree ...

containing chopped parsley. A variant called "liquor" is often served with

pie and mash Pie and mash is a traditional working-class food, originating in the Docks of London. It typically consists of a minced beef pie, mashed potato and a parsley sauce known as liquor. Pie, mash and eel shops have been in London since the 19th centu ...

as a traditional

British British may refer to: Peoples, culture, and language * British people, nationals or natives of the United Kingdom, British Overseas Territories, and Crown Dependencies. ** Britishness, the British identity and common culture * British English, ...

food, particularly in

London London is the capital and List of urban areas in the United Kingdom, largest city of England and the United Kingdom, with a population of just under 9 million. It stands on the River Thames in south-east England at the head of a estuary dow ...

.BBC Food: Traditional pie 'n' mash with parsley liquor
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References

Sauces {{Condiment-stub