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Chinese-style fish fillet with lemon sauce

Swordfish belly fillets are thinly sliced, seasoned, coated with batter, deep fried then tossed with a syrupy sauce made with fresh lemon juice, sugar, chili flakes, grated ginger, turmeric and kaffir lime leaves.
Chinese-style fish fillet with lemon sauce
Seafood recipe by Connie Veneracion | Last updated: 10.06.2025

Cook’s notes

How to make lunch for three people with only 300 grams of fish fillets? Slice them, batter them, deep fry them then serve them with a sticky, syrupy and citrusy sweet sour sauce.
In an old newsletter, I mentioned Stephen Yan (no, not Martin Yan) and his cooking show called Wok with Yan that I enjoyed decades ago.
One of the best lessons from the show is how to stretch a small amount of meat to feed more people than usual. I applied the technique with fish. I had thawed 300 grams of swordfish belly fillets, there were three of us for lunch and I had to make sure that there would be more than enough for everyone.
Swordfish belly fillets are used here but feel free to substitute any firm and fleshy fish.

Chinese-style fish fillet with lemon sauce

Prep: 10 minutes mins
Cook: 15 minutes mins
Total: 25 minutes mins
Servings: 3 people
Course: Main Course
Cuisine: Asian
Label: Fish fillet
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Ingredients

  • 300 grams fish fillets (about 10.5 oz) cut into ¼-inch slices
  • 1 teaspoon lemon pepper seasoning store bought

Lemon sauce

  • ¼ cup lemon juice
  • ⅓ cup white sugar
  • ½ teaspoon grated lemon zest
  • ¼ teaspoon grated ginger
  • 2 pinches salt
  • ½ teaspoon turmeric powder
  • ½ teaspoon chili flakes
  • 1 pair kaffir lime leaves thinly sliced (ribs discarded)

To fry the fish

  • cooking oil for deep frying
  • 1 egg white
  • ¼ cup cornstarch

To serve

  • sliced scallions
  • mint leaves torn into small pieces
  • lemon slices

Instructions

Season the fish

  • Press the fish slices between stacks of kitchen paper to remove excess water.
  • Place the fish in a bowl, add the lemon pepper seasoning and toss well.

Cook the lemon sauce

  • In a small sauce pan, melt the sugar with the lemon juice and a quarter cup of water.
    Making lemon sauce with lemon juice, sugar, turmeric, chili flakes, kaffir lime leaves, grated ginger and salt
  • Add the lemon zest, ginger, salt, turmeric, chili flakes and kaffir lime leaves.
  • Boil over medium heat for about five minutes until reduced by half.
  • Taste, add more lemon juice or salt, or both, then set aside to cool.

Fry the fish

  • In a wok or frying pan, heat enough cooking to reach a depth of at least three inches.
  • Pour the egg white over the seasoned fish, add the cornstarch, toss until a light batter forms and coats each slice of fish.
    Making lemon sauce with lemon juice, sugar, turmeric, chili flakes, kaffir lime leaves, grated ginger and salt
  • Drop the battered fish fillets one by one into the hot oil.
  • Cook until a crisp crust forms on the surface of the fish slices (see notes).
  • Scoop out with a kitchen spider, tap gently over the pan to allow excess oil to drip off and transfer the fish to a shallow bowl or deep plate.

Assemble the dish

  • Drizzle the lemon sauce over the dish.
  • Sprinkle in the scallions and mint leaves.
  • Arrange lemon slices on the side.
    Chinese-style fish fillet with lemon sauce
  • Serve with rice.
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About Connie Veneracion

Home cook and writer by passion, photographer by necessity, and good food, coffee and wine lover forever. I create, test and publish recipes for family meals, and write cooking tips and food stories. More about me and my umami blogs.

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