Caldo Verde: Portuguese Kale & Sausage Soup

'Green Broth' is Portugal's national dish, a tribute to simplicity. Its base is a silky potato soup into which finely shredded kale (couve galega) is cooked. The soup's thickness comes from the starch of the broken-down potatoes, while its flavor is crowned by smoky sausage (Chorizo or Linguiça). A rural Portuguese dinner is unimaginable without it.
🕒 Prep Time 15 mins
🍳 Cook Time 30 mins
Total Time 45 mins
🍽️ Servings 4 servings
🔥 Calories 350 kcal
🌍 Cuisine Portuguese

Ingredients

Equipment Needed

  • Immersion Blender: For pureeing.
  • Sharp Knife: To slice the kale thinly.

Instructions

1

Sauté the chorizo slices in the bottom of a pot with a little oil until they release their fat and turn red. Remove and set aside.

Tip: This step flavors the oil, which forms the foundation of the entire soup.
2

In the remaining chorizo oil, sauté the onion and garlic until soft but not browned.

Tip: The onion should be translucent to blend seamlessly into the cream.
3

Add the cubed potatoes, cover with water/stock, season with salt and pepper. Simmer covered until the potatoes are falling-apart tender (approx. 15-20 minutes).

Tip: The high starch content of Russet potatoes naturally thickens the soup (gelatinization).
4

Meanwhile, stack and roll the kale leaves tightly like a cigar, and slice into the thinnest strips possible (chiffonade cut).

Tip: Thin strips add texture without being tough to chew.
5

Blend the soup until completely smooth using an immersion blender. Taste and adjust salt if needed.

Tip: Be careful with hot liquids! You now have a thick, creamy base.
6

Return to heat, add the kale strips and the fried chorizo. Cook for another 2-3 minutes until the kale is tender but still bright green.

Tip: If overcooked, the kale will turn brown and taste sulfurous.
7

Drizzle with a little raw olive oil before serving.

Tip: The scent of olive oil on hot soup is the essence of Mediterranean cuisine.

Recipe FAQ

Why isn't my soup green enough?
You cooked the kale too long. Kale should only be added at the very end, for just a few minutes, to preserve its vibrant color (chlorophyll).

Ingredients

  • 1.5 lbs Russet Potatoes (peeled and cubed)
  • 10 oz Kale or Collard Greens (ribs removed)
  • 5 oz Chorizo or Linguiça (sliced thinly)
  • 1 small Onion (finely chopped)
  • 2 cloves Garlic (crushed)
  • 3 tbsp Olive Oil
  • 6 cups Water or Chicken Stock
  • 1 tsp Salt
  • 1/2 tsp Pepper