Plate 09 of 10

So'o Josopy

Name: So'o Josopy
Prep time: 20 min
Cook time: 25 min
Total time: 45 min
Yield: 6 soup portions
Cuisine: Paraguay
Ingredients: 600 g Very lean beef — top round, eye of round or lean sirloin — trimmed of all gristle and fat, ground fine twice; 1.5 L Cold filtered water; 80 g Harina de maíz paraguaya — fine yellow corn flour; 15 g Fine sea salt; 30 ml Rendered pork lard, or extra-virgin olive oil; 300 g Yellow or white onions, peeled and minced into fine 3 mm brunoise; 4 cloves Fresh garlic, minced to a fine paste; 1 medium Red bell pepper, cored and minced into fine 3 mm dice; 2 large Ripe plum tomatoes, peeled, seeded and chopped fine; 5 g Ground cumin seeds, freshly toasted in a dry skillet; 4 g Dried wild oregano, hand-crushed; 2 g Freshly ground black peppercorn; 30 g Scallions and flat-leaf parsley, chopped fine

Guaraní for "pounded meat broth", and the trick is counter-intuitive: raw lean beef is whisked into cold water with corn flour before it ever meets heat. Stirred continuously as it climbs to 75 °C, the proteins set as a velvety suspension of microscopic particles instead of seizing into meatballs.

Prep: 20 min
Cook: 25 min
Serves: 6 soup portions
Difficulty: Easy

Researched · Kitchen testing pending

A dark clay bowl of thick pale golden-brown broth flecked throughout with fine meat particles and pieces of red pepper, topped with a small sprig of green herbs, on a woven straw mat.

So’o josopy is ancient — created by the Guaraní centuries ago, and the name translates literally as pounded meat broth: so’o, meat, josopy, crushed in a mortar. It was historically made by grinding jerky or fresh beef in a wooden angu’a with a stone pestle.

The dish depends on one extraordinary phenomenon. Raw minced beef is whisked cold, with cold water and toasted corn flour, before it ever touches heat. Brought slowly to a simmer with continuous stirring, the meat proteins never clump; they form a silky suspension of microscopic savoury particles.

Flavoured with sweet onion, garlic, pepper and wild oregano, it is Paraguay’s restorative broth.

Ingredients

The suspension
600 gVery lean beef — top round, eye of round or lean sirloin — trimmed of all gristle and fat, ground fine twice
1.5 LCold filtered waterit must be cold — never warm or hot
80 gHarina de maíz paraguaya — fine yellow corn flour
15 gFine sea saltplus more to taste at the finish
Sofrito
30 mlRendered pork lard, or extra-virgin olive oil
300 gYellow or white onions, peeled and minced into fine 3 mm brunoise
4 clovesFresh garlic, minced to a fine paste
1 mediumRed bell pepper, cored and minced into fine 3 mm dice
2 largeRipe plum tomatoes, peeled, seeded and chopped fine
5 gGround cumin seeds, freshly toasted in a dry skillet
4 gDried wild oregano, hand-crushed
2 gFreshly ground black peppercorn
To finish
30 gScallions and flat-leaf parsley, chopped fine

Cold water is the entire technique

Ground beef dropped into hot broth seizes instantly — myosin and actin cross-link into dense rubbery clumps. Whisked into cold water first, the muscle fibres separate into a fine milky suspension, and between 65 and 75 °C they coagulate as ultra-fine particles instead of balls.

Stir from the second it hits the heat

Flat wooden spoon, figure-eights across the floor of the pot, without stopping. Corn flour and fine meat settle and scorch within seconds if you walk away.

The thickening moment

The corn starch swells at about 72 °C. You will feel the liquid thicken suddenly and see the pink turn to a warm savoury brown — that is the dish arriving, at roughly 10 to 12 minutes.

Very lean beef only

90/10 or leaner. Fatty mince renders grease that separates and pools on the surface, which ruins the velvet.

Passive time, counted separately

The sofrito is cooked first and cooled to room temperature before it joins the cold suspension. That sits outside the times quoted above.

The five tastes on this plate

Salt seasons the cold suspension and dissolves into the beef particles. Fat is lard carrying the sofrito, against very lean beef. Acid is low, finished with lime squeezed into the bowl. Heat is toasted cumin, garlic, pepper and fresh scallion. Umami is extreme — beef ribonucleotides and glutamates released by the cold-water dispersion.

Equipment

Small skillet, for the sofrito
5 to 6 qt enamelled cast-iron Dutch oven
Balloon whisk
Flat wooden spoon
Wide warm bowls

Traditionally a deep unglazed olla de barro stirred with a long wooden paddle. A heavy 5-to-6 quart enamelled Dutch oven or multi-clad pot works in a modern kitchen — thick walls are what stop the corn flour and meat particles settling and burning.

Method

Cook the sofrito13 min
Heat 30 ml lard in a small skillet over medium and sauté the onions, garlic and bell pepper 6 to 8 minutes until soft and translucent.
Add the tomatoes, cumin, oregano, black pepper and 1 tsp salt and cook 5 minutes to a glossy paste. Cool to room temperature.
Heat 30 ml lard over medium; sauté onion, garlic and bell pepper 6–8 minutes until soft and translucent. Add tomato, cumin, oregano, pepper and 1 teaspoon salt; cook 5 minutes to a glossy paste. Cool to room temperature.
Build the cold suspension5 min
Off the heat, put the ground beef and the corn flour into the cold Dutch oven and pour in 500 ml of the cold water.
Whisk or massage vigorously by hand 2 minutes until it is a smooth, pink, milky liquid with zero meat clumps.
Off heat, combine very lean, finely ground beef and corn flour in a cold pot with 500 ml cold water. Whisk or massage vigorously 2 minutes until smooth, pink and milky with no meat clumps; never use warm water.
Add the rest, cold2 min
Pour in the remaining litre of cold water with 12 g salt.
Whisk the cooled sofrito through until completely blended into the pink liquid.
Pour in the remaining litre of cold water with 12 g salt.
Whisk the cooled sofrito through until completely blended into the pink liquid.
Raise the heat, stirring throughout12 min
Set the pot over medium heat and stir continuously from that moment — figure-eights across the bottom with a flat wooden spoon.
As it climbs toward 75 °C / 167 °F the liquid thickens suddenly into a velvety broth and the pink turns savoury brown. About 10 to 12 minutes.
Place over medium heat and stir continuously from the start, scraping figure-eights across the base with a flat wooden spoon. After about 10–12 minutes, near 75 °C / 167 °F, the mixture thickens and turns from pink to brown.
Simmer gently10 min
The moment it reaches a gentle boil, drop to low and simmer 8 to 10 minutes, stirring often.
Taste and adjust the salt and pepper. It should be thick, smooth and coating the back of a spoon.
The moment it reaches a gentle boil, drop to low and simmer 8 to 10 minutes, stirring often.
Taste and adjust the salt and pepper. It should be thick, smooth and coating the back of a spoon.
Garnish and serve
Off the heat, stir in the scallions and parsley.
Ladle into wide warm bowls and serve at once with boiled mandioca and lime wedges.
Off the heat, stir in the scallions and parsley.
Ladle into wide warm bowls and serve at once with boiled mandioca and lime wedges.
07
Sensory cues of doneness
- Visual: a thick velvety pale golden-brown broth flecked with microscopic meat particles, red tomato and green herb — and no solid clumps anywhere.
- Auditory: a quiet thick simmer, and the rhythmic scrape of the wooden spoon across the pot floor.
- Olfactory: savoury beef broth, toasted corn flour, sweated garlic, sweet onion and crushed wild oregano.
Look for thick, velvety pale golden-brown broth with fine meat particles, tomato and herbs, never meat clumps. Keep a quiet simmer and scrape the base; expect beef, toasted corn flour, garlic, onion and oregano aromas.

Storing it

Reheat gently over medium-low, stirring constantly. If it has thickened too far on standing, whisk in 100 ml of warm water or broth.

Troubleshooting

The meat sets into hard little balls.: The water was warm, or the stirring stopped. It must be cold water, and you must stir without pause until it boils.
A scorched bottom.: The pot was left alone. Corn flour and fine meat settle in seconds — keep the spoon moving.
Grease pooling on the surface.: The beef was too fatty. Use 90/10 or leaner.

Substitutions

One-to-one global substitutions, with the technique adjustment each one requires.

Ingredient substitutions

Ingredient	Replace with	Culinary impact and technique adjustment
Lean beef round	Eye of round, top round, or lean ground turkey	One-to-one. It must be very lean, with all gristle removed
Harina de maíz paraguaya	Masa harina or fine yellow corn flour — never cornstarch	One-to-one. It is what binds the broth naturally
Rendered pork lard	Unsalted European butter or neutral sunflower oil	One-to-one, for the sofrito

Scaling

Half, for 3 portions

Halve everything in a 3.5-quart pot. Heating and simmering times are unchanged.

Double, for 12 portions

Double everything in an 11-to-12 quart pot, and stir with extra diligence to keep the larger volume moving.

What to serve it with

Mandioca hervida caliente — boiled cassava for dipping straight into the soup
Tortilla paraguaya — crisp pan-fried cheese and scallion fritters
Mate cocido, or cold tereré, with lime squeezed into the bowl at the table

Questions

Can I blend the raw meat?

Yes — pulsing raw lean beef chunks with 250 ml of cold water in a food processor makes an ideal ultra-fine slurry for a velvety broth.

Does it work with chicken?

Yes. That is ryguasu josopy, made with raw minced chicken breast whisked into cold water with the corn flour the same way.

How does it reheat?

Gently, over medium-low, stirring constantly. Whisk in 100 ml of warm water or broth if it has stiffened on standing.