Locro de Papa (Ecuadorian Potato and Cheese Soup)

In Ecuadorian cooking, locro de papa is a comforting potato soup with a naturally creamy body rather than a heavy, flour-thickened base. Tender potatoes are simmered with onion, garlic and cumin, then blended so their starch gives the soup its soft, velvety texture. Milk and cheese add richness, while avocado, fresh coriander and extra cheese bring freshness and substance at the table. It is hearty enough for dinner, simple enough for a weeknight, and easy to adjust between smooth and rustic depending on how much texture you leave in the potatoes.
Cuisine style Ecuadorian home cooking
Cooking style One-pot cooking • Minimal cleanup
Time commitment Under 1 hour

Why this recipe works

  • Naturally creamy: Blended potatoes thicken the soup without needing flour, giving it a smooth, substantial texture.
  • Gentle savoury base: Slowly softened onion, garlic and cumin create warmth and depth before the potatoes are added.
  • Comforting but fresh: Milk and cheese add richness, while avocado and coriander keep the finished bowls fresh and balanced.

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Authenticity notes

  • Ecuadorian potato soup: Locro de papa is a well-known Ecuadorian-style potato soup, typically creamy, cheese-enriched and served with avocado.
  • Home-style texture: A fully smooth version feels rich and polished, while leaving some potato pieces gives a more rustic, home-style finish.

Ingredient notes

  • Choose waxy-creamy potatoes: Yukon Gold potatoes work well because they soften easily while still giving the soup body and a buttery texture.
  • Use full-fat dairy: Whole milk and cheddar melt into the soup more smoothly than lower-fat options, which can make the texture thinner or less rounded.
  • Add avocado last: Slice the avocado just before serving so it stays fresh, firm and distinct against the warm soup.

Texture tips

  • For a thicker soup: Blend the potatoes more thoroughly and let the soup stand briefly before serving; it will continue to thicken slightly.
  • Keep the dairy smooth: After adding the milk and cheese, warm the soup gently and avoid boiling so the dairy stays integrated.

Make-ahead tips

  • Make ahead: The soup can be cooked in advance and refrigerated, but the avocado and coriander should be added only when serving.
  • Reheat gently: Warm in a saucepan over low heat, stirring often, until piping hot; avoid a hard boil to protect the creamy texture.

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Ingredients
Instructions
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  1. Finely chop the onion. Peel and crush the garlic, then peel the potatoes and cut them into roughly 2 cm chunks.
  2. Heat the olive oil in a large pot over medium heat. Add the onion with a pinch of the salt and cook for 6 to 8 minutes until soft and translucent, stirring regularly.
  3. Stir in the garlic and ground cumin and cook for 30 to 60 seconds until fragrant. Add the potatoes and vegetable stock, bring to a gentle simmer, then cook for 15 to 18 minutes until the potatoes are very tender.
  4. Blend the soup until creamy, leaving a little texture if you like. Stir in the whole milk and most of the cheddar cheese, reserving a small handful for serving, and warm gently for 2 to 3 minutes without boiling. Season with the remaining salt and the black pepper.
  5. Slice the avocado and roughly chop the fresh coriander. Ladle the soup into bowls and top with the avocado, the reserved cheddar, and the coriander.

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Recipe notes

Tips

  • For a thicker locro, blend the soup fully; for a more rustic texture, blend briefly and leave some potato pieces intact.
  • Keep the heat low after adding the whole milk and cheddar cheese so the soup stays smooth and the cheese melts evenly.
  • If serving to pregnant people, young children, older adults, or anyone immunocompromised, use pasteurised whole milk and cheddar cheese.

Substitutions

  • Replace Cheddar cheese with Gruyere cheese for a nuttier finish.
  • Replace Whole milk with Double cream for a richer, more luxurious soup.

Storage

  • Refrigerate up to 3 days
  • Cool, cover and refrigerate. Reheat gently in a saucepan over low heat until piping hot, stirring often; avoid boiling to prevent the dairy from splitting. Add the avocado and fresh coriander only when serving.

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Locro de Papa (Ecuadorian Potato and Cheese Soup)
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Recipe overview

  • Servings: 4 servings
  • Total time: 45min (20min active)
  • Difficulty: Easy
  • Cuisine: Latin American
  • Allergens:
    Milk
Beginner friendly One pot Kid friendly

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