Fujian Oyster Omelette (O-a-jian)
蚵仔煎
Fujian/Taiwan street food classic — fresh oysters in a crispy-edged egg and sweet potato starch pancake, topped with sweet-savory sauce.
📋 Ingredients
What Is Fujian Oyster Omelette (O-a-jian)?
💡 Ingredient Notes: Oyster Omelette (蚵仔煎, ò a jiān in Hokkien, hái lì jiān in Mandarin) is a beloved street food from Fujian that spread to Taiwan and Southeast Asia. Fresh oysters are cooked in a batter of sweet potato starch and eggs, creating a pancake with crispy edges and a soft, slightly chewy center studded with plump oysters. Topped with a sweet-savory sauce and served sizzling. The sweet potato starch gives the unique texture — not quite an omelette, not quite a pancake, but something wonderful in between.
Ingredients You'll Need
The Batter
- 4 tbsp sweet potato starch (地瓜粉)
- 6 tbsp cold water
- ½ tsp salt
The Filling
- 200g (7 oz) fresh small oysters
- 3 eggs, beaten
- 1 bunch garlic chives or scallions, cut into pieces
- 3 tbsp cooking oil
The Sauce
- 2 tbsp ketchup
- 1 tbsp soy sauce
- 1 tbsp sugar
- 1 tsp rice vinegar
- 1 tsp cornstarch + 2 tbsp water
- Optional: chili sauce
📝 Instructions
Make the batter
Mix sweet potato starch with cold water and salt. Stir well — the starch settles quickly, so stir again right before using.
Make the sauce
Combine ketchup, soy sauce, sugar, vinegar, and ¼ cup water in a small pan. Simmer, add cornstarch slurry, and stir until thickened. Set aside.
Cook the omelette
Heat oil in a large flat pan until very hot. Give the batter a stir and pour it in — it should sizzle and spread. Immediately scatter the oysters and chives on top. Pour the beaten eggs over everything.
Crisp and flip
Cook undisturbed for 3-4 minutes until the bottom is crispy and golden. Flip (or slide onto a plate and invert back) and cook 2 more minutes.
Serve
Slide onto a plate. Drizzle generously with the sauce. Eat immediately while the edges are still crispy.
💡 Pro Tips
- 💡Sweet potato starch is essential — it gives the unique chewy-crispy texture. Find it at Asian markets (地瓜粉).
- 💡Use the smallest freshest oysters you can find — they cook quickly and stay tender.
- 💡Get the pan screaming hot before adding batter — that's how you get crispy edges.
📊 Nutrition Facts
❓ Frequently Asked Questions
Can I substitute the sweet potato starch? Tapioca starch is the closest substitute. Cornstarch works but gives a different texture — more crispy, less chewy.
Where do I get fresh oysters? Seafood markets or the seafood counter of good grocery stores. Use small ones — large oysters are too big for this dish.
