Danish Soup Recipes: Hearty Yellow Pea Soup

Danish gule ærter is a traditional, filling yellow pea soup made with dried peas, pork, root vegetables, and herbs. This home-style version simmers until the peas soften and the broth thickens, making a warming main course with rye bread and mustard; family recipes vary in their choice of pork and vegetables.

Ingredients

1 lb (450 g) dried whole yellow peas
8 cups (1.9 L) cold water, for soaking the peas; discard after soaking
1 lb (450 g) boneless pork shoulder, cut into roughly 1-inch (2.5 cm) pieces
1 tablespoon (15 ml) neutral cooking oil
8 cups (1.9 L) low-sodium chicken stock or water, plus up to 2 cups (475 ml) hot water as needed
1 medium yellow onion, about 5 oz (150 g), finely chopped
2 medium carrots, about 7 oz (200 g), peeled and cut into ½-inch (1.25 cm) pieces
1 small leek, about 5 oz (150 g), white and pale-green parts, washed well and sliced
2 celery ribs, about 3½ oz (100 g), diced
2 medium waxy potatoes, about 10½ oz (300 g), peeled if desired and cut into ¾-inch (2 cm) cubes
1 dried bay leaf
1 teaspoon (1 g) dried thyme, or 1 tablespoon (3 g) fresh thyme leaves
½ teaspoon (0.5 g) dried marjoram
1 teaspoon fine salt (5 g), plus more to taste; use less if the stock is salty
½ teaspoon (1 g) freshly ground black pepper
1 tablespoon (15 ml) cider vinegar, optional, for serving or finishing
2 tablespoons (30 g) chopped fresh parsley, optional, for serving

Instructions

Soak the peas. Put the dried yellow peas in a large bowl and cover with 8 cups (1.9 L) cold water. Leave them to soak for 8 hours at room temperature, then drain and rinse. If your kitchen is very warm, soak them in the refrigerator instead. The soaking water is not used in the soup.
Prepare the vegetables and pork. Chop the onion, carrots, leek, celery, and potatoes as directed. Rinse sliced leek in a bowl of water, separating the layers to remove any grit, then lift it out and drain. Pat the pork dry so it browns rather than steams.
Brown the pork. Heat the oil in a large, heavy soup pot over medium-high heat. Add the pork in a single layer, working in batches if needed, and brown it for about 8 to 10 minutes, turning the pieces to color a few sides. Browning builds a savory base, but the meat does not need to cook through at this stage. Transfer it to a plate.
Simmer the peas and pork. Add the drained peas, pork, stock, bay leaf, and salt to the pot. Bring the liquid just to a boil, skimming off any foam, then lower the heat to maintain a gentle simmer. Cover partially and cook for 1 hour 50 minutes, stirring every 20 to 30 minutes so peas do not settle and catch on the bottom. If the soup becomes very thick before the peas are tender, add hot water a little at a time.
Add the vegetables. Stir in the onion, carrots, leek, celery, thyme, marjoram, and black pepper. Keep the soup at a gentle simmer for 25 minutes, then add the potatoes and simmer for about 20 minutes more, until the potatoes are tender and the peas are soft. Check the pork with a food thermometer: USDA FSIS lists 145°F (63°C) with a 3-minute rest as the safe minimum for whole cuts of pork. Check the largest piece, let it rest for 3 minutes, and then return it to the soup if you removed it to check.
Adjust the texture and seasoning. Remove the bay leaf. For a thicker, more cohesive soup, mash some peas and vegetables against the side of the pot with a spoon, or briefly mash a small portion with a potato masher. Leave plenty of whole pieces for texture. If it is thicker than you like, stir in hot water or stock. Taste before adding more salt, especially if you used stock.
Finish and serve. Stir in the cider vinegar if you want a little brightness, or pass it at the table so everyone can adjust their bowl. Ladle into warm bowls and top with parsley if using. Serve hot with rye bread and mustard.

Tips

Soak the peas long enough. Eight hours gives whole dried peas a head start and helps them cook more evenly. If you forget to soak them, use the quick-soak method on the package, or choose split yellow peas and follow their cooking time; unsoaked whole peas can take substantially longer.
Look for whole yellow peas. They may be sold in Scandinavian or international grocery shops and online. If they are hard to find, split yellow peas are a practical substitute. They break down faster and make a smoother, thicker soup, so start checking them after about 45 minutes of simmering and add the vegetables when the peas are nearly tender.
Keep the heat gentle. A rolling boil can make peas break down unevenly and can cause the bottom of a thickening soup to scorch. Stir regularly, especially near the end, and add hot liquid if the spoon leaves a track that does not quickly fill in.
Season at the end, too. Stock, pork, and mustard served alongside can all bring salt. Taste after the peas and vegetables are tender, then adjust the salt, pepper, and vinegar in small amounts rather than seasoning heavily at the start.

Serving Suggestions

Serve gule ærter as a substantial one-pot meal in wide bowls. Danish-style rye bread is a natural accompaniment: its dense, mildly tangy crumb is useful for dipping into the thick broth. A small dish of sharp mustard lets diners add a little heat and acidity to each spoonful, while pickled beetroot or another tart pickle provides contrast. Chopped parsley is optional rather than essential, but it adds a fresh note and color.

If the soup is the first course of a larger meal, offer smaller portions and follow it with a simple green salad or cooked seasonal vegetables. The soup is filling, so elaborate sides are unnecessary. Set out cider vinegar, black pepper, and mustard separately; these let people brighten or season their own bowls without changing the whole pot.

Variations

Use smoked pork: Replace the fresh pork shoulder with about 1 lb (450 g) smoked pork shoulder or a meaty smoked ham hock. Smoking gives the broth a deeper, saltier flavor, so begin with unsalted water or low-sodium stock and wait until the end to add salt. A bone-in hock may need extra simmering to become tender; remove the bone and any tough skin before serving, and check the package guidance if the meat is not already cooked.

Make it without meat: Leave out the pork and use vegetable stock. Add 1 tablespoon (15 ml) oil when you would otherwise brown the meat, and consider stirring in 1 teaspoon (5 ml) soy sauce or a little extra marjoram for savory depth. The result will be lighter and will not have the same pork-rich flavor, but the peas still make a hearty base.

Change the vegetables: Parsnip or a small piece of celeriac can replace some of the carrot or celery. Keep the total quantity of vegetables similar so the soup does not become crowded. Add firm root vegetables with the carrots, while quick-cooking greens should go in only during the last few minutes.

Choose a smoother bowl: Use split yellow peas instead of whole peas, omit the potatoes if you prefer, and mash or blend part of the finished soup. Split peas soften more quickly and create a creamy texture without dairy. If blending, let the soup cool slightly and work in batches to avoid splashes from hot liquid.

Storage and Reheating

Cool leftovers promptly and refrigerate them within 2 hours of cooking, in shallow airtight containers. The soup keeps for 3 to 4 days in the refrigerator. It thickens as it sits because the peas continue to absorb liquid, so store a little extra stock or water to loosen it when reheating.

Reheat only the portion you plan to eat in a saucepan over medium-low heat, stirring often and adding water or stock until it reaches the consistency you want. Heat leftovers to 165°F (74°C), checking with a food thermometer. For microwave reheating, cover loosely, stir partway through, and check the temperature in more than one spot. Freeze cooled soup in airtight, freezer-safe containers for up to 3 months for best quality; leave room for expansion. Thaw it in the refrigerator before reheating. Do not leave the soup at room temperature for extended storage.

Frequently Asked Questions

Do I have to soak yellow peas overnight?
For this recipe, yes: the overnight-style soak helps whole peas cook within the stated simmering time. If you need a quicker option, use split yellow peas and follow the package directions, checking tenderness early because they cook and soften faster. Do not count on unsoaked whole peas being ready on the same schedule.

Can I use green split peas instead?
Yes, but the flavor and appearance will be different. Green split peas give a greener, earthier soup and tend to break down into a thick texture. They do not need the overnight soak used for whole yellow peas, so add them with the liquid and begin checking tenderness well before the vegetable stage in this recipe.

How can I tell when the peas are done?
Taste a few peas from the pot. They should be tender all the way through, without a dry or chalky center. Whole peas can vary in age and cooking time, so if they are still firm after the stated simmer, continue cooking gently and add hot water as needed before adding the potatoes.

Can I make the soup ahead?
Yes. Make it through the final seasoning, cool it promptly, and refrigerate it for up to 3 to 4 days. The peas will thicken the broth overnight, so reheat gently with a splash of water or stock. If you are planning ahead, you can also soak and drain the peas, then keep them covered in the refrigerator for up to a day before cooking.

Why did my soup become so thick?
Yellow peas release starch as they soften, and they keep absorbing liquid after cooking. Stir in hot water or stock a little at a time while reheating until the soup is as loose as you like. If it tastes diluted after adding liquid, adjust the pepper, salt, and a small splash of vinegar at the end.

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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes

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