Mushy peas are dried marrowfat peas, soaked and then boiled until they break down completely into a thick green purée. They are served alongside fish and chips, with pies, or in a bowl on their own, and they are a matter of some regional feeling.
Not mashed fresh peas
The common misunderstanding. Mushy peas are made from marrowfat peas — a variety left to mature and dry out on the plant rather than picked young. They are then rehydrated overnight in water with bicarbonate of soda, which softens the skins and allows them to collapse during cooking.
The bicarbonate is also responsible for the colour, and commercial versions typically add green colouring to reinforce it.
The flavour is quite different from fresh peas — earthier, starchier and more savoury, closer to a split pea than to a garden pea.
Where they belong
Mushy peas are strongly associated with the North of England, and particularly Yorkshire and Lancashire. In a Northern chip shop they are a standard item, kept hot in a tub, and ordering fish, chips and peas is entirely routine.
They travel less well southward. Southern chip shops often carry them, but the enthusiasm is markedly lower, and the South frequently prefers a version made with fresh peas and mint — which Northerners regard as a different food entirely and not a very serious one.
Pea wet and pea mix
Two regional refinements worth knowing:
- Pea wet — the thin liquor from the peas, ladled over chips as a free alternative to gravy. A Wigan and Bolton speciality.
- Pie, peas and mint sauce — a meat pie sitting in a bowl of mushy peas with a dash of mint sauce. A Lancashire and Yorkshire staple, and the standard food at football grounds and village halls across the North.
The “pea and pie supper” is a genuine institution — the default catering for a quiz night, a fundraiser or a working men’s club event.
The Harry Ramsden defence
Mushy peas achieved a moment of national fame in 2005, when a chip shop in Yorkshire ran an advertising campaign describing them as “Yorkshire caviar”, and again when a survey found a substantial proportion of southerners had never eaten them.
They also feature in one of the more quoted lines of British food writing, in which they are described as looking like something that should be scraped off a shoe and tasting a great deal better than that suggests — which is, honestly, fair.
Making them
Soak dried marrowfat peas overnight with a teaspoon of bicarbonate of soda. Drain, rinse well, then simmer in fresh water for around half an hour until they collapse, stirring and adding water as needed. Season generously with salt and a knob of butter.
Tinned versions are entirely acceptable and are what most chip shops use. Batchelors is the dominant brand, and the dried “quick soak” packets with their own bicarbonate sachet are the standard domestic route.