Caldillo Duranguense (Beef and Green Chilli Soup)

In caldillo duranguense, tender beef, potatoes and a roasted green chilli-tomato base come together as a hearty northern Mexican soup with depth rather than heaviness. Poblano peppers bring mellow warmth and a lightly smoky edge, while ripe tomatoes soften the broth with gentle acidity and body. The beef is simmered until yielding, so the stock becomes savoury and rounded before the blended vegetables are stirred through. Served with warm corn tortillas and fresh coriander, it is the kind of practical, filling soup that works well as a complete dinner, especially when you want comfort with clear, vibrant flavour.
Cuisine style Northern Mexican home cooking
Spice level Medium
Cooking style Slow-cooked • Make-ahead friendly • Freezer-friendly
Time commitment Slow-cooked

Why this recipe works

  • Roasted chilli depth: Roasting the poblanos and tomatoes before blending gives the broth a fuller, lightly smoky character.
  • Hearty but balanced: Beef chuck and potatoes make the soup substantial, while the green chilli and tomato base keeps it savoury rather than heavy.
  • Gentle simmering: Cooking the beef slowly in the broth helps it become tender while also building a richer base for the soup.

Get the most out of this recipe

Adjust the heat

  • For a milder soup: Remove the poblano seeds thoroughly and use milder green chillies if substituting.
  • For more heat: Replace some or all of the poblano with a hotter green chilli, adjusting gradually so the broth stays balanced.
  • Keep the chilli rounded: Roasting the chillies softens their sharpness and gives the soup a deeper, more rounded heat.

Timing notes

  • Use the simmering time well: Roast and blend the poblanos and tomatoes while the beef is cooking, so the soup comes together efficiently.
  • Serve once the potatoes are tender: The soup is at its best when the beef is soft and the potatoes hold their shape rather than breaking down into the broth.

Authenticity notes

  • Durango-style caldillo: This style of caldillo is associated with northern Mexico and is known for combining beef, potato, tomato and green chilli in a savoury broth.
  • Tortillas on the side: Warm corn tortillas are a natural accompaniment, used for scooping, dipping or eating alongside the beef and broth.

Make-ahead tips

  • Good the next day: The broth develops further after resting, making leftovers especially flavourful.
  • Reheat gently: Warm the soup in a saucepan until piping hot, adding a little water if the broth has thickened in the fridge.
  • Freezer-friendly: Freeze cooled portions in sealed containers, then defrost in the fridge before reheating thoroughly.

Equipment you'll need

Ingredients
Instructions
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  1. Cut the beef into large chunks and season with 1 1/2 tsp fine sea salt and the black pepper. Peel and halve the onion; peel the garlic. Pour the beef stock into a large pot and set it over medium heat.
  2. Add the beef, onion and garlic to the pot and bring to a gentle simmer. Skim any foam from the surface, then cover and simmer on low for 45 minutes, until the beef is starting to turn tender.
  3. Meanwhile, heat the oven to 220°C (430°F). Put the poblano peppers and tomatoes on a baking tray, drizzle with the olive oil, and roast for 15 to 20 minutes, turning once, until blistered and softened.
  4. Transfer the roasted peppers to a bowl and cover with a plate for 5 minutes, then peel off the skins and remove the seeds. Peel the tomato skins if you like. Blend the peppers and tomatoes with the dried oregano and a ladleful of hot broth until smooth.
  5. Peel the potatoes and cut into bite-sized chunks. Stir the blended chilli and tomato mixture into the pot, then add the potatoes and the remaining 1/2 tsp fine sea salt. Simmer, uncovered, for 15 to 20 minutes until the potatoes are tender and the beef is fully tender.
  6. Taste and adjust seasoning if needed. Chop the fresh coriander. Warm the corn tortillas briefly, then serve the soup topped with coriander, with tortillas on the side.

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Recipe notes

Serving suggestions

This recipe pairs well with:

Corn tortillas

Tips

  • Keep the simmer gentle so the beef stays juicy and the broth remains clear; a few lazy bubbles is ideal.
  • For a smoother broth, blend the roasted peppers and tomatoes thoroughly, then pass through a sieve-strainer before adding to the pot.
  • If serving vulnerable groups, ensure the soup is brought back to a full simmer after blending and added ingredients, and serve piping hot.

Substitutions

  • Replace Beef chuck roast with Beef brisket for a similarly rich, slow-simmered texture.
  • Replace Poblano pepper with Green chili pepper for a hotter, sharper chilli flavour.
  • Replace Fresh coriander with Fresh flat-leaf parsley if you prefer a milder herb finish.

Storage

  • Refrigerate up to 3 days
  • Cool, then refrigerate in a sealed container for up to 3 days. Reheat gently in a saucepan until piping hot, adding a splash of water if it has thickened; freeze for up to 3 months and defrost overnight in the fridge before reheating.

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Caldillo Duranguense (Beef and Green Chilli Soup)
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Recipe overview

  • Servings: 4 bowls
  • Total time: 1h 40min (30min active)
  • Difficulty: Medium
  • Cuisine: Mexican
With serving suggestions Freezer friendly Kid friendly

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