This Caldo Verde recipe brings together silky pureed potatoes, smoky sausage, and ribbons of kale in a broth that tastes like it simmered all day, even though it comes together in under an hour. It is Portugal's national soup for a reason. Simple pantry ingredients turn into something deeply comforting, and once you taste that first spoonful of the golden, olive oil kissed broth, you will understand the hype.
Heat olive oil in a large Dutch oven over medium high heat. Brown the sliced sausage in a single layer for 4-5 minutes, then transfer to a plate with a slotted spoon.
Cook the diced onion in the rendered sausage fat until soft and translucent, about 3-4 minutes. Add garlic and cook for 30 seconds until fragrant.
Add the cubed potatoes and chicken broth to the pot. Season with salt and pepper, bring to a boil, then reduce to a gentle simmer. Cover partially and cook for 15-18 minutes until potatoes are fork tender.
Remove from heat and use an immersion blender to puree about three quarters of the soup directly in the pot, leaving some potato chunks for texture.
Return the pot to medium heat and bring to a gentle simmer. Stir in the thinly sliced kale a handful at a time and cook for 4-6 minutes until bright green and tender.
Return the browned sausage to the pot and simmer for 2-3 minutes to meld flavors. Taste and adjust seasoning. Ladle into bowls and finish with a generous drizzle of olive oil.
Notes
Slice the kale as thinly as you can, almost like ribbons, so it cooks quickly and eats easily off a spoon.
Do not skip browning the sausage first. The fond at the bottom of the pot is pure flavor.
Leave some potato chunks unblended for texture instead of pureeing the entire pot.
Use a good quality olive oil for the finishing drizzle. It really does come through in the final taste.
Let the soup rest for five minutes off the heat before serving so the flavors settle.
This soup actually tastes even better the next day, once the flavors have had time to settle together.
Store leftovers in an airtight container in the refrigerator for up to 4 days.
Freeze in freezer safe containers for up to 3 months.
Add a splash of broth or water when reheating if the soup has thickened too much.
For a vegetarian version, skip the sausage and use smoked paprika plus vegetable broth for depth.