Caldo verde is a potato and greens soup from northern Portugal, traditionally made with finely sliced couve-galega and served with rounds of chouriço. This home-friendly version keeps the broth silky and the greens bright, with easy-to-find kale as a substitute when Portuguese cabbage is unavailable.
Ingredients
- 2 tablespoons (30 ml) extra-virgin olive oil, plus more for serving
- 1 medium yellow onion (about 5 ounces/150 g), peeled and finely chopped
- 3 garlic cloves (about 9 g), finely chopped
- 1½ pounds (680 g) Yukon Gold or russet potatoes, peeled and cut into 1-inch (2.5 cm) pieces
- 6 cups (1.4 L) low-sodium chicken or vegetable broth
- 1 bay leaf (about 0.2 g)
- 1 teaspoon (6 g) fine salt, plus more to taste
- ¼ teaspoon (0.5 g) freshly ground black pepper
- 8 ounces (225 g) couve-galega, kale, or collard greens, stems removed and leaves sliced very thinly
- 6 ounces (170 g) Portuguese chouriço, cut into thin rounds; use cured, ready-to-eat sausage
- ¼ teaspoon (1 g) smoked paprika, optional, for a little extra smoky flavor
Instructions
- Prepare the vegetables. Peel and chop the potatoes, onion, and garlic, and remove tough stems from the greens. Stack the leaves, roll them into a tight bundle, and slice across into very fine ribbons, about ⅛ inch (3 mm) wide. Thin slicing is important: it lets the greens soften quickly while staying distinct in the soup. Set the prepared ingredients beside the stove.
- Soften the onion. Warm the olive oil in a large, heavy soup pot over medium heat. Add the onion and cook for 6 minutes, stirring occasionally, until soft and translucent but not browned. Stir in the garlic and cook for 2 minutes. 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 black pepper. Bring the liquid to a gentle boil, then lower the heat so it simmers steadily. Partially cover the pot and cook for 22 minutes, or until a potato piece breaks apart easily when pressed against the side of the pot with a spoon. Stir once or twice to prevent potatoes from sticking.
- Make the soup base smooth. Remove and discard the bay leaf. Use an immersion blender to purée the potatoes and broth until smooth, keeping the blender head submerged to avoid splashes. Alternatively, blend in batches in a countertop blender, filling it no more than halfway and venting the lid according to the manufacturer’s instructions. Return the soup to the pot if needed. It should be creamy but pourable; stir in a little warm water or broth if it seems too thick.
- Brown the chouriço. While the soup base simmers, heat a small skillet over medium heat. Add the chouriço rounds in a single layer and cook for 4 minutes, turning once, until lightly browned and some of their red-orange fat has rendered. Transfer the rounds to a plate, leaving the flavorful fat in the skillet. Portuguese chouriço is generally cured and ready to eat; if using fresh, raw sausage instead, cook it to 160°F (71°C), the USDA FSIS safe minimum for ground pork, checked with a food thermometer.
- Cook the greens. Stir the thinly sliced greens into the puréed soup and simmer gently for 7 minutes, uncovered, until tender but still green. Keep the liquid at a low simmer rather than a hard boil, which can dull the color and make the greens less pleasant. If using especially mature collards, give them a few extra minutes and check tenderness before serving.
- Finish and season. Stir in the browned chouriço and optional smoked paprika, then simmer for 2 minutes to warm the sausage through. Taste the broth and adjust the salt and pepper; broth and cured sausage vary in saltiness, so it is best to season at the end. Ladle into warm bowls and finish with a small drizzle of olive oil.
Tips
- Slice the greens finely. Traditional couve-galega is cut into delicate ribbons. A sharp knife makes this easier, and a food processor’s slicing attachment can help if you are making a large batch. Avoid chopping the leaves into coarse squares, which cook differently and change the soup’s characteristic texture.
- Choose the right potato texture. Yukon Gold potatoes make a smooth, slightly buttery base; russets break down readily and create a fluffier, thicker soup. Waxy potatoes can work, but they may take longer to blend completely. If the purée is gluey, avoid prolonged blending and loosen it with broth.
- Use greens that are easy to find. Couve-galega, a Portuguese leafy cabbage, may be sold at Portuguese or Brazilian markets. Lacinato or curly kale is a practical substitute; collards are also good but usually need a little longer to soften. The substitute greens have a more pronounced texture and a slightly different flavor.
- Keep the broth balanced. Chouriço contributes salt, smoke, and richness, so start with low-sodium broth and add extra salt only after the sausage has been stirred in. If you want a lighter bowl, use less sausage and finish with olive oil rather than adding more rendered sausage fat.
Serving Suggestions
Serve caldo verde hot as a first course or as a simple supper with crusty bread for dipping. A rustic country loaf or Portuguese broa de milho, a cornmeal bread, is especially fitting; if broa is hard to find, a sturdy sourdough or other crusty bread works well. Set out olive oil at the table so each person can add a few drops to the surface of the soup.
For a fuller meal, pair the soup with a green salad dressed with olive oil and vinegar, or serve it before grilled fish, roast chicken, or a vegetable dish. The soup is filling, so modest portions make a good starter. For a more substantial bowl, add an extra handful of greens or a few additional chouriço slices rather than serving it with several rich sides.
Caldo verde is associated especially with the Minho region in northern Portugal and is now enjoyed throughout the country. Home cooks vary the proportions of potatoes, greens, and sausage, so the texture and garnish are not identical from one household to another. This version aims for a smooth potato broth with visible ribbons of greens and a modest amount of smoky sausage.
Variations
Make it vegetarian. Use vegetable broth and omit the chouriço. For a smoky garnish, warm a teaspoon of smoked paprika in olive oil and spoon a little over each bowl. This provides a smoky aroma, but it will not reproduce the savory, cured-pork flavor of Portuguese sausage. You can also add white beans for a heartier meat-free soup.
Try another sausage. If Portuguese chouriço is unavailable, Spanish-style chorizo or another cured smoked sausage can be used in the same quantity. Spanish chorizo often tastes more strongly seasoned with paprika, so start without the optional smoked paprika and adjust after tasting. Avoid soft, raw Mexican-style chorizo as a direct sliced garnish; if using it, cook it separately until it reaches 160°F (71°C), then spoon a small amount into bowls.
Adjust the greens and thickness. Use collards for a slightly sturdier bite or baby kale for a more tender, mild result. Add the greens in two batches if the pot is full, letting the first handful wilt before stirring in the rest. For a thinner soup, add warm broth a little at a time; for a thicker one, simmer uncovered briefly before adding the greens so they do not overcook.
Make the soup without a blender. Mash the cooked potatoes thoroughly with a potato masher, then whisk them into the broth. The result will be more rustic, with small pieces rather than a completely smooth base, but it remains recognizable and satisfying. Do not mash the greens into the potatoes; their fine ribbons are meant to remain visible.
Storage and Reheating
Refrigerate leftovers within 2 hours of cooking in a covered, shallow container. The soup keeps for 3 to 4 days in the refrigerator. The greens soften further as they sit, and the potato base may thicken, so the next-day texture will be less delicate than freshly made soup. If possible, store the sausage separately and add it as you reheat each portion; this helps it retain more of its browned texture.
Reheat soup on the stovetop over medium-low heat, stirring occasionally and adding a splash of water or broth if it has thickened. Heat leftovers to 165°F (74°C), checking with a food thermometer. A single portion can also be reheated in the microwave in a covered, microwave-safe bowl, stirring halfway through and checking that it is evenly hot. Freeze the soup in airtight portions for up to 2 to 3 months for best quality. Thaw overnight in the refrigerator and reheat to 165°F (74°C); the potatoes may become slightly grainier after freezing, but stirring well usually restores a pleasant consistency.
Frequently Asked Questions
What does caldo verde mean? The Portuguese name means “green broth” or “green soup,” referring to the green leafy cabbage traditionally sliced into the potato-based soup. Despite the name, the broth is usually pale and creamy, with green ribbons visible throughout.
Can I make caldo verde ahead? Yes. Prepare the soup through the potato-purée step up to 2 days ahead, cool and refrigerate it promptly, then reheat it and cook the greens shortly before serving. This keeps the greens brighter and less soft. Brown the chouriço separately and add it near the end.
Do I have to peel the potatoes? Peeling gives the soup its smooth, even texture. If you prefer to leave the skins on, scrub the potatoes well and expect a more rustic base with small flecks of skin. Starchy russet skins can be especially noticeable after blending.
Why is my soup too thick? Potatoes absorb liquid as they cook and continue to thicken the soup as it cools. Stir in warm broth or water a few tablespoons at a time until it reaches a spoonable consistency. Taste again afterward, since extra liquid can dilute the salt and seasoning.
Can I use frozen kale? Yes. Thaw it and squeeze out excess water before adding it to the soup. Frozen greens are usually cut more coarsely than traditional couve-galega, so chop them smaller if needed and simmer just until tender. They may give the soup a softer texture and a less vivid green color.
Is caldo verde always made with chouriço? Sausage is a familiar traditional garnish, but recipes vary, and some versions are made without it. You can leave it out for a vegetarian bowl or serve it on the side so diners can choose how much to add. The potato, broth, and finely sliced greens still make a satisfying soup on their own.
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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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