Half a cup cooked gives about 8 g of protein and 8 g of fibre.
Added late they stay whole; added early they melt and thicken the pot.
Salting the water at the start keeps them tough. Salt at the end.
Lapeh is a field pea, dried, hulled and split in half so it cooks in half an hour instead of two. Split down the middle it has nowhere to hide: it either holds its shape, if you add it late, or dissolves into the sauce, if you add it early. Persian cooking uses both behaviours, and the difference between a good gheymeh and a grainy one is nothing more than timing.
Known to botanists as Pisum sativum.
Chapter 2 of 14
In Persian Life
Gheymeh is the stew of nazri, the food cooked in enormous pots during Muharram and given away. Split peas are what make that possible: they turn a pot of stew into a pot that will feed a street. There is no gheymeh without lapeh, and no nazri kitchen without sacks of it.
Persian temperament: Warm & Dry (1st degree). Classed as heavy. The traditional fix is sourness and warm spice, which is exactly what dried lime and turmeric provide.
Chapter 3 of 14
In Persian Life: In the Household
Persian medicine classes lapeh as warm and dry, and calls it heavy on the stomach. That is why the classical pairings all cut through it: dried lime, turmeric, sour flavours. The advice is practical rather than theoretical, and anyone who has eaten a badly made gheymeh will recognise the reasoning.
Cooked into thick āsh as everyday winter food for working households.
Ground into flour and used to thicken broths for the unwell.
Carried dried on journeys, where they kept indefinitely and cooked quickly.
Chapter 4 of 14
What It Contains
Primary compounds
Soluble fibre forms a gel in the gut, which is why pulses blunt the blood-sugar rise of the rice beside them.
Resistant starch survives digestion and feeds the bacteria in the large intestine.
Folate sits high here, at roughly a quarter of the daily requirement per serving.
Non-haem iron is present but poorly absorbed unless vitamin C is in the same meal.
Vitamins
Thiamine, Vitamin K
Other notable constituents
Fiber: About 8 g per 1/2 cup cooked · Minerals: Potassium, Magnesium, Phosphorus
Chapter 5 of 14
What Studies in People Show
What studies in people show
Regular pulse consumption lowered LDL (the harmful type of cholesterol) cholesterol in pooled randomised trials.Strong evidence
Pulses in a meal reduced the post-meal blood glucose rise in controlled studies.Moderate evidence
Chapter 6 of 14
Using It in the Kitchen
Lunch or dinner, in a stew, with rice beside it.
Rinse until the water runs clear, then soak for an hour if you have time.
Add to gheymeh after the meat has softened.
Simmer long and stir often for a thick āsh.
Cook in unsalted water and season at the end.
Chapter 7 of 14
Using It in the Kitchen: Other Ways to Use It
Skim the foam in the first ten minutes for a cleaner sauce.
Add late to gheymeh so they hold their shape.
Season at the end, never at the start.
Add them to gheymeh once the meat is already tender.
Simmer them long in āsh until they collapse and thicken the soup.
Chapter 8 of 14
Why It Matters
A pulse that costs almost nothing and carries as much protein as an egg per serving is the reason Persian stews can stretch 300 g of lamb across six people. That was never framed as nutrition. It was economy, and it happens to be good eating.
Protein intake matters more with age, not less, and meat gets expensive and hard to chew. A stew built on split peas gives soft protein and fibre in the same spoonful. Introduce them gradually if the gut isn't used to pulses, and cook them until they are properly soft.
It was used: delivers roughly 8 g of plant protein per half cup cooked. The soluble fibre slows digestion and steadies the rise in blood sugar after a meal.
Chapter 9 of 14
Who Should Be Careful
General caution:
They carry a fair amount of potassium and phosphorus, which matters if you have advanced kidney disease and a dietitian has set limits.
General caution:
Undercooked pulses cause bloating and wind. Cook until a pea crushes with no resistance between two fingers.
Allergy:
Anyone with a diagnosed pea or legume allergy should avoid them entirely.
Allergy:
Diagnosed pea or legume allergy.
Chapter 10 of 14
Medicines and Interactions
Medication interaction:
Warfarin — Split peas contain some vitamin K. Steady intake matters rather than avoidance. (low concern)
General caution:
Levothyroxine — A high-fibre meal can slow tablet absorption. Leave a gap of an hour. (low concern)
Chapter 11 of 14
Pregnancy, Children and Older Adults
Pregnancy and breastfeeding
Pregnancy and breastfeeding:
A good pregnancy food: folate, iron and protein in one cheap ingredient. Eat it in a meal that also has something sour or fresh, since vitamin C helps the iron get absorbed.
Children
Children:
Well-cooked split peas suit children from the time they eat family food. Mash them into the sauce for the youngest. Start with small amounts if the child isn't used to pulses.
Older adults
Older adults:
Soft protein that needs no chewing and costs little. Cook them thoroughly, and increase the amount slowly if pulses have been absent from the diet for years.
Chapter 12 of 14
What It Goes With
Fruit:
Dried lime
Pierce two and drop them in. The sourness is the traditional answer to a heavy pulse.
Spice:
Turmeric
Fried with the onion at the start. Without it a gheymeh tastes flat and looks pale.
Pairing:
Potato
Fried matchsticks over the top. Texture against a soft stew.
Grain:
Rice
Pulse and grain together make a complete protein, which Persian cooking arrived at without knowing why.
Chapter 13 of 14
Through the Year
Spring:
Spring
Lighter āsh with plenty of herbs. The peas take a back seat.
Summer:
Summer
Less appealing in heat. Keep the portion small.
Autumn:
Autumn
Gheymeh weather returns as soon as the evenings cool.
Winter:
Winter
Thick āsh and long-cooked stews. The season the pulse was made for.
Chapter 14 of 14
Questions People Ask
Why did my gheymeh turn to mush?
The peas went in with the meat. They need about forty minutes, the meat needs an hour and a half.
Are they the same as yellow lentils?
No, though they look similar and are often swapped. Lentils cook faster and break down sooner.
How do I stop the bloating?
Cook them until fully soft, rinse well before cooking, and build up the portion over a few weeks rather than all at once.