“Soup” in Portuguese is sopa; one beloved Portuguese example is caldo verde, a potato soup with ribbons of greens and slices of chouriço. This home-style version is smooth, savory, and easy to adapt, with regional and family variations in the greens, sausage, and texture.
Ingredients
- 2 tablespoons (30 ml) extra-virgin olive oil, plus 1 tablespoon (15 ml) for finishing
- 1 medium yellow onion, about 1 cup (150 g), finely chopped
- 3 garlic cloves, about 1 tablespoon (9 g), minced
- 1 pound (450 g) Yukon Gold or russet potatoes, peeled and cut into 1-inch (2.5 cm) pieces
- 6 cups (1.4 liters) low-sodium chicken or vegetable broth
- 1 bay leaf
- 1 teaspoon (5 g) kosher salt, plus more to taste; use less at first if your broth or sausage is salty
- ¼ teaspoon (0.5 g) freshly ground black pepper
- 6 ounces (170 g) couve-galega or curly kale, tough stems removed and leaves sliced very thinly (about 4 loosely packed cups)
- 4 ounces (115 g) Portuguese chouriço, thinly sliced; smoked Spanish chorizo is a practical substitute, though it gives the soup a smokier, more paprika-forward flavor
Instructions
- Prepare the vegetables and sausage. Chop the onion, mince the garlic, peel and cut the potatoes, and slice the greens into narrow ribbons. Keep the chouriço separate from the vegetables so you can add it at the right time. Thinly slicing the greens matters: broad, thick strips are awkward to eat and take longer to soften.
- Soften the onion. Warm 2 tablespoons (30 ml) olive oil in a large, heavy pot over medium heat. Add the onion and cook for 5 to 7 minutes, stirring occasionally, until soft and translucent but not browned. Stir in the garlic and cook for about 30 seconds, just until fragrant. If the garlic begins to color, lower the heat; browned garlic can make the broth taste bitter.
- Simmer the potatoes. Add the potatoes, broth, bay leaf, salt, and pepper. Bring the liquid to a boil, then reduce the heat so it simmers steadily. Partly cover the pot and cook for 18 to 22 minutes, until the potatoes are very tender and can be pierced easily with a fork. Stir once or twice and scrape the bottom of the pot if needed.
- Blend the soup base. Remove and discard the bay leaf. Use an immersion blender to puree the potatoes and broth until smooth, keeping the blender head submerged to avoid splashes. Alternatively, let the soup cool briefly and blend it in batches in a countertop blender, filling the jar no more than halfway and venting the lid as directed by the blender manufacturer. Return the soup to the pot if you used a countertop blender. For a more rustic texture, mash some potatoes against the pot instead of blending everything.
- Add the greens. Bring the smooth soup back to a gentle simmer and stir in the sliced kale. Cook uncovered for 6 to 8 minutes, stirring once or twice, until the ribbons are tender but still green. If the soup seems too thick, add broth or water a little at a time. If it looks thin, simmer it for a few extra minutes before adding the sausage.
- Warm the chouriço and finish. Stir in the sliced chouriço and simmer for 2 to 3 minutes, just long enough to warm it and let its flavor season the soup. Portuguese chouriço is commonly cured and ready to eat; if using raw pork sausage instead, cook it through and verify that it reaches the USDA FSIS safe minimum internal temperature of 160°F (71°C) with a food thermometer. Taste the soup, adjust the salt and pepper, and stir in the remaining 1 tablespoon (15 ml) olive oil just before serving.
Tips
- Slice the greens finely. Traditional couve-galega can be difficult to find outside Portugal. Curly kale is a widely available substitute; remove the thick ribs and cut the leaves into very narrow strips. Collard greens also work, though they may need a few extra minutes to become tender and have a sturdier texture.
- Choose the right sausage. Portuguese chouriço brings garlicky, gently smoky flavor, but availability varies. Spanish chorizo is a convenient cured-sausage substitute and tends to make the broth more assertively smoky. Avoid adding much extra salt until the finished soup has been tasted, because cured sausage can be salty.
- Control the texture before seasoning. Potato varieties and broth brands affect thickness and saltiness. Blend the potatoes well for a creamy base, then thin it with broth if needed. Add extra salt only after the greens and sausage have simmered in the pot.
- Keep the greens from turning dull. Add them after pureeing the potatoes, not before. A short simmer keeps their color fresher and their flavor clearer. If preparing ahead, cook the soup base first and add the greens when reheating for a brighter result.
Serving Suggestions
Serve caldo verde hot in shallow bowls, with a few visible ribbons of kale and slices of chouriço in each portion. A small drizzle of olive oil over the top is a simple finish; the oil adds aroma and gives the surface a gentle sheen. Put additional black pepper on the table so people can season their own bowls.
Crusty bread is a natural companion for soaking up the potato-rich broth. A simple green salad or sliced tomatoes can balance the soup if you are serving it as a full meal. For a larger Portuguese-inspired spread, offer olives and bread alongside it, then serve the soup as a starter before a main dish. Since potatoes and sausage make it satisfying, a modest bowl can also work as the first course of a multi-course meal.
Variations
Make it vegetarian. Use vegetable broth and leave out the chouriço. For a savory finish, add a little extra olive oil and black pepper; smoked paprika can provide a smoky note, but use it sparingly because it does not taste exactly like cured sausage. A few white beans can make the bowl heartier without changing the basic method.
Use a different green. Thinly sliced collards are close in sturdiness to kale. Savoy cabbage is another option and softens more quickly, so begin checking it after about 4 minutes. Spinach wilts much faster and has a softer texture; stir it in near the end and cook only until wilted.
Leave some potato pieces whole. If you prefer a less uniform soup, remove about a cup of cooked potato pieces before blending, puree the remaining base, then return the reserved pieces to the pot. This gives the broth body while adding a few tender bites.
Adjust the sausage presentation. Some cooks simmer sausage slices in the soup, while others brown them separately first. Browning develops deeper, toasted flavors, but it also makes the result richer and less delicate. If browning, use a skillet, then add the slices to the finished soup; spoon off excess rendered fat rather than pouring it all into the pot.
Storage and Reheating
Cool leftovers promptly and refrigerate them within 2 hours in a covered container. The soup keeps for 3 to 4 days in the refrigerator. The potato base may thicken as it sits, so stir in a splash of broth or water when reheating. Warm it in a saucepan over medium-low heat, stirring often, until steaming throughout. For food safety, reheat leftovers to 165°F (74°C), checking with a food thermometer rather than relying only on the surface temperature.
You can freeze the soup for up to 2 to 3 months in freezer-safe containers, leaving a little room for expansion. Potatoes can become slightly grainy after freezing and thawing, but blending or stirring the soup well while reheating usually improves its texture. Thaw it overnight in the refrigerator when possible, then reheat to 165°F (74°C). If you know you will freeze a batch, consider freezing the potato broth before adding the greens; add fresh greens as the soup reheats for a more appealing texture.
Frequently Asked Questions
What does “soup” mean in Portuguese?
“Soup” translates to sopa in Portuguese. The word for a particular soup depends on the dish: caldo verde is the name of this Portuguese potato-and-greens soup, rather than a literal translation of the general word “soup.”
How do you pronounce sopa?
As a practical English approximation, say SOH-pah, with two syllables. Portuguese pronunciation varies between Portugal and Portuguese-speaking countries, so the vowel sounds may differ slightly by region. The word is still readily recognizable as the everyday term for soup.
Is this the only traditional caldo verde recipe?
No. Caldo verde is a well-known soup associated with northern Portugal, but household and regional versions vary. The choice and amount of greens, whether the potatoes are fully pureed, and how the sausage is cooked can all differ. This recipe follows the familiar approach of a smooth potato base with finely sliced greens and chouriço.
Can I make the soup without a blender?
Yes. Cook the potatoes until very soft, then press them with a potato masher or the back of a spoon against the side of the pot. The broth will be less completely smooth, but the potatoes still thicken it. For the creamiest texture without a blender, mash thoroughly and stir well before adding the greens.
Can I make caldo verde ahead?
Yes. Prepare the potato base a day ahead, cool it promptly, and refrigerate it. Reheat the base, add the kale, and simmer until tender; then add the chouriço to warm through. This approach helps the greens retain a fresher color than if they are cooked and reheated several times. Refrigerate the finished soup within 2 hours and use it within 3 to 4 days.
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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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