Ärtsoppa

Sweden's Thursday yellow pea soup, thick and savoury with thyme and marjoram, sharpened at the table with strong mustard.

VeganGluten-free#split peas#soup#thyme#mustard#winter
Prep
15 min
Cook
90 min
Total
105 min
Serves
6
Difficulty
Easy

Method

  1. Rinse the split peas under cold water and soak them for at least 6 hours, or overnight, then drain.
  2. Soften the onions and carrots in the oil over medium heat for 10 minutes, until tender and glossy.
  3. Add the peas, water and bay leaves. Bring to the boil and skim off the grey foam that rises in the first few minutes.
  4. Lower the heat, half-cover, and simmer for 1 hour 15 minutes, stirring now and then so nothing catches on the base.
  5. Stir in the thyme, marjoram and salt, then cook for a further 15 minutes; some of the peas should break down and thicken the soup on their own.
  6. Loosen with a little hot water if it is too stiff, then serve piping hot, letting everyone stir a dab of mustard into their own bowl.

Swedes eat ärtsoppa on Thursdays, followed by pancakes with lingonberry jam. Hold the salt back until the end: added early it keeps the skins of the peas stubbornly firm.

Nutrition · per serving

Calories
320 kcal
Protein
16.5 g
Fat
7.5 g
Carbohydrate
49.7 g
Fibre
17.2 g

An estimate computed from the recipe quantities and the USDA food composition database. Real values vary with the products used.

Frequently asked questions

Do the split peas really need soaking?

It is not strictly required, but it shortens the cooking noticeably and, more importantly, evens it out. Without a soak you must go well beyond the stated hour and a quarter, stir more often so nothing catches, and you often end up with collapsed peas alongside firm ones.

Why skim off the grey foam at the start?

That foam carries the impurities the peas release at first boil. Left in, it boils over the pan and leaves an earthy aftertaste in a soup that should taste clean. Two or three passes with a skimmer in the first five minutes are enough.

Why is the mustard added at the table rather than in the pot?

Mustard's heat comes from volatile compounds that cooking drives off: stirred into simmering soup it leaves only a vaguely sour note. Served alongside, each person works it into their own bowl and gets the sharp bite that lifts the split peas.

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