Sarsiadong Isda: A Soft Tomato-Egg Sauce That Does Not Overcook the Fish

Sarsiadong isda makes yesterday’s fried-fish flavours feel like a new meal, but it is easy to simmer the fish until its flesh flakes into the sauce and turn the eggs into hard granules. The dish benefits from two different cooking temperatures: enough heat to soften tomato and release a lightly thickened sauce, then gentler heat for eggs and already cooked fish. Fully cooked fish should remain recognisable in the finished serving rather than disappearing into oily scrambled tomato. Source 1

What to prepare and measure

For four modest rice plates, use 600–800 g cleaned fish, 3 ripe chopped tomatoes, 1 small onion, 3 minced garlic cloves, 2 eggs, 1 tbsp oil for the sauce and about 150 ml water, adding more if needed. Keep frying oil separate from that sauce allowance. These are home-trial quantities based on the tomato-and-egg method; the Sarciadong Isda recipe provides another complete version. Safely refrigerated leftover fish can be used, with the reheating sequence below.

Method and decision points

1. If starting with raw fish, keep it cold until preparation and fry until the thickest flesh reaches 63°C. Set it on a clean plate; do not reuse the raw-fish plate or utensils without washing.
2. Soften onion and garlic in the sauce oil, then cook the tomatoes until they break down. Add the measured water gradually to make a spoonable sauce. Taste before adding patis or salt, especially if the fried fish was seasoned.
3. For chilled leftover fish, add it to the tomato sauce now, before the eggs, and heat the thickest part to 74°C. Lift it carefully to a clean warm plate while finishing the sauce. Freshly fried fish can wait for the final step.
4. Beat the eggs in a clean bowl. Lower the pan heat, pour them into the sauce and fold gently to form soft curds. Cook the egg sauce to 71°C; soft texture should not mean uncooked egg.
5. Return the hot fish and spoon the finished sauce over it. Avoid repeated turning or a long further boil. Serve promptly with rice and a vegetable side.
6. Refrigerate remaining portions in shallow containers within 2 hours, or 1 hour above 32°C. Use the original cooking date when tracking leftovers; making sarsiado does not restart storage time.

Sources: Source 1 Source 3 Source 2

Why this approach works

Tomatoes need time to soften before the eggs arrive. Chilled fish also needs enough heating to reach its reheating endpoint, which is why this version warms it before finishing the egg sauce. Freshly fried fish needs only the short final combination. Keeping these routes separate protects the egg texture without leaving a cold centre in the fish.

Costs, adjustments and common mistakes

A small amount of leftover fried fish can make a useful lunch, but the safety history is the first question. If the original fish sat uncovered and warm for hours, making sarsiado does not erase that history. For fresh fish, record the actual cost and number of portions; for leftovers, do not allocate the entire earlier meal’s price again as if buying new protein. Use the leftovers cooling and reheating guide when planning the second meal.

The satisfying result is a whole tender piece of fish under tangy tomato sauce with soft egg ribbons. A short finish protects both the texture and the time already spent cooking the fish.