Passion Fruit Sour Soup Beef is a highly memorable dish. The fruity tartness is refreshing and cuts through the richness, the beef is silky and flavorful, and the broth is tangy with a hint of spice—perfect with rice or noodles. It’s not hard to make; the key lies in marinating the beef and controlling the amount of passion fruit.
Prep time: 30 minutes (plus 20 minutes freezing time) | Cook time: 15 minutes | Serves: 3–4
🌴 Ingredients:
· Beef tenderloin, 300g (about 10.5 oz; sliced thinly against the grain, about 2–3mm / ⅛ inch; freezing for 20 minutes makes it easier to slice)
· Passion fruit, 3–4 (about 150g; start with 3, taste, and add more if it’s not sour enough. If unavailable, substitute with ½ cup of passion fruit juice, or use a mix of fresh orange juice and a splash of lemon juice for a similar fruity tang)
🌴 Vegetables:
· Tomato, 1 (about 150g; cut into small pieces)
· Enoki mushrooms, a small handful (about 50g; optional)
🌴 For Marinating the Beef:
· Light soy sauce, 1 tbsp (about 15ml)
· Oyster sauce, ½ tbsp (about 7.5g)
· Cooking wine, 1 tbsp (about 15ml)
· White pepper powder, a pinch (about 0.5g)
· Cornstarch, 1 tbsp (about 10g)
· Egg white, ½ (about 15g)
· Cooking oil, ½ tbsp (about 7.5ml; to seal in moisture)
🌴 Aromatics:
· Minced ginger, a small piece (about 5g)
· Minced garlic, 3 cloves (about 10g)
· Thai bird’s eye chilies, 2–3 (about 5g; optional)
· Chili oil, 1 tbsp (about 15ml; optional, for extra heat)
🌴 Seasonings:
· Light soy sauce, ½ tbsp (about 7.5ml; for the broth, to prevent it from being too salty)
· Salt, none or to taste at the end
· Sugar, ½ tsp (about 2.5g; to balance the acidity, add more only if it’s too sour)
· Fish sauce, 1 tsp (about 5ml; optional, for umami. If omitting, add a pinch more salt or a dash of soy sauce to make up for the umami)
· Water or stock, 1 bowl (about 250ml / 1 cup)
· Cooking oil, 1 tbsp (about 15ml)
All spoon measures are level. Light soy sauce is thin and salty—use it as listed for the best flavor.
🌴 Instructions:
- Marinate the Beef
Slice the beef tenderloin thinly against the grain, about 2–3mm (⅛ inch). Add 1 tbsp light soy sauce, ½ tbsp oyster sauce, 1 tbsp cooking wine, and a pinch of white pepper. Massage with your hands until the liquid is absorbed and the surface feels sticky. Then add ½ egg white and 1 tbsp cornstarch, and continue massaging. Finally, drizzle with ½ tbsp cooking oil to seal in the moisture, and marinate for 15 minutes. ⚠️ Tip: Slicing against the grain is key—it cuts the fibers so the meat stays tender. Freezing for 20 minutes makes thin slicing easier. Massage until sticky before adding the starch; the oil seals in moisture. - Prepare the Passion Fruit
Cut the passion fruit in half and scoop out the pulp and juice into a bowl. ⚠️ Tip: Start with 3 fruits, taste, and add more if it’s not sour enough. The seeds are edible and add crunch, but if you prefer a smooth broth, strain the pulp through a fine mesh sieve before adding. - Make the Broth Base
Heat the wok and add 1 tbsp cooking oil. Add the minced ginger, garlic, and chilies, and stir-fry over low heat until fragrant. Add the tomato pieces and a pinch of salt, and stir-fry over medium heat until the tomato softens and releases its juice (about 2–3 minutes). ⚠️ Tip: Keep the heat low for the ginger, garlic, and chilies—high heat burns them. A pinch of salt helps the tomatoes release their juice faster, making the broth richer. - Add the Passion Fruit
Add the passion fruit pulp and stir-fry until fragrant. Pour in about 1 cup (250ml) of water or stock, and bring to a boil over high heat. If the broth is too thin, reduce it over high heat before adding the beef. ⚠️ Tip: Don’t stir-fry the passion fruit for too long—add the water as soon as it becomes fragrant so the fruity aroma doesn’t dissipate. If the broth is thin, reduce it first so it clings to the beef better. - Cook the Beef
Once the broth boils, reduce to low heat and keep it at a gentle simmer (micro-boiling). Add the marinated beef slices one by one—don’t dump them all in at once. The beef is cooked as soon as it changes color, about 30–40 seconds. ⚠️ Tip: Adding beef to a rolling boil will break it apart and make it tough. Adding slices one by one prevents them from clumping. Don’t overcook—it gets tough quickly. - Season
Add ½ tbsp light soy sauce and ½ tsp sugar. Taste the sourness and saltiness. Add salt if needed, or a teaspoon of fish sauce for extra umami. If it’s too sour, add a little more sugar. ⚠️ Tip: The marinade and broth base are already salty, so hold off on the salt—taste first. Sugar balances the acidity; add it gradually, tasting as you go. - Add the Vegetables
If using enoki mushrooms, blanch them for 30 seconds to 1 minute in advance, drain, and spread them at the bottom of the serving bowl. Pour the cooked beef and broth over them. ⚠️ Tip: Blanch the enoki for just 30 seconds to 1 minute—drain them well so they don’t dilute the broth. - Serve
Sprinkle with chopped scallion or cilantro. Just before turning off the heat, squeeze in a few drops of lemon juice for a fresh tang, and garnish with two lemon slices. Serve hot. This dish is amazing served over steamed rice or noodles—the tangy broth soaked into the rice is absolutely irresistible! ⚠️ Tip: Squeeze the lemon juice just before turning off the heat for a fresher tang. Use lemon slices for garnish only—don’t let them soak in the soup, or they’ll turn bitter.
💡 Tips:
Freeze the beef for 20 minutes and slice thinly against the grain. Massage until sticky before adding starch, drizzle with oil to seal, and marinate for 15 minutes. Start with 3 passion fruits, add water as soon as they release their aroma, and don’t stir-fry them for too long. Add a pinch of salt to the tomatoes to help them release their juice, and reduce the broth first if it’s too thin. Keep the broth at a gentle simmer and add the beef one by one—remove as soon as they change color (30–40 seconds). Halve the soy sauce in the broth base, add salt at the very end if needed, and use sugar to balance the acidity. Blanch the enoki mushrooms for 30 seconds to 1 minute for the base. Squeeze lemon juice just before turning off the heat, and use lemon slices for garnish only. Done this way, the dish is tangy, aromatic, and incredibly appetizing, with silky, tender beef—one bite and you’re hooked!
This Passion Fruit Sour Soup Beef is rich in fruity aroma, tangy and appetizing, with silky tender beef—a truly unique and impressive dish. If you like this sweet and tangy braised style, you can also try my previously posted Tomato Potato Braised Ribs (Tomato Potato Braised Ribs). For more classic hearty dishes, check out my Main Dishes (Main Dishes) category!
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