Fusion Recipe: Oyster Omelet Croquettes with Sea Urchin Aioli
Oyster Omelet Croquettes with Sea Urchin Aioli
This recipe transforms the beloved Taiwanese street food, O-a-tsian (Oyster Omelet), into a sophisticated, bite-sized croquette. We take the chewy, starch-bound omelet mixture, add fresh oysters, roll it into a ball, and give it a crisp Canadian breadcrumb crust. The richness of the fritter is perfectly balanced by a luxurious aioli featuring the buttery, briny flavour of fresh West Coast sea urchin (uni). It's a fantastic, high-end appetiser for any special celebration.
Ingredients
For the Oyster Omelet Filling (Base)
- 12 fresh, shucked oysters (small to medium), patted very dry
- 1 large egg, lightly beaten1
- 2 Tbsp sweet potato starch (or tapioca starch, for chewiness)
- 1/4 cup water2
- 1/4 cup finely chopped scallions (green parts only)
- 1/4 cup finely chopped leafy green (e.g., Taiwanese cabbage, celery leaves, or spinach)
- 1 tsp fish sauce
- 1/2 tsp white pepper
- 1/2 tsp grated ginger
For the Croquettes (Coating)
- 1/2 cup all-purpose flour
- 2 large eggs, whisked
- 1 cup Panko breadcrumbs (for extra crispiness)
- Vegetable oil, for deep frying
For the Sea Urchin Aioli (Canadian Fusion)
- 2 large egg yolks
- 1/4 cup fresh sea urchin roe (uni), cleaned
- 1 clove garlic, minced
- 1 Tbsp lemon juice
- 1/2 cup neutral oil (e.g., canola or grape-seed)
- 1/4 cup extra virgin olive oil
- Pinch of salt and white pepper
🔪 Instruction & Method
Part 1: Prepare the Omelet Filling
- Par-Cook the Oysters: In a small bowl, toss the patted-dry oysters with the fish sauce and white pepper.
- Make the Starch Slurry: In a separate bowl, whisk together the sweet potato starch and water until smooth.3 This is the key to the Taiwanese texture.
- Cook the Omelet Base: Heat 1 tablespoon of oil in a non-stick pan over medium-high heat. Add the ginger and leafy greens/scallions, and sauté for 1 minute.
- Add Oysters and Slurry: Pour in the starch slurry and stir quickly to prevent lumps. It will immediately begin to thicken and become translucent/gelatinous. Cook for about 30 seconds.
- Finish with Egg: Pour the beaten egg over the mixture. Stir gently for about 1 minute until the egg is mostly set but still soft. Remove from heat immediately.
- Chill and Form: Transfer the mixture to a bowl. The goal is a thick, sticky, and cohesive "omelet dough." Let it cool completely in the refrigerator (about 1 hour) until it is firm enough to handle.
- Shape Croquettes: Once chilled, use a small spoon (about 1.5 Tbsp) to scoop the mixture and roll it gently into small, bite-sized balls or log shapes. Place them on a lined tray. Return to the fridge.
Part 2: Prepare the Sea Urchin Aioli
- Emulsify the Base: Combine the egg yolks, sea urchin roe, minced garlic, and lemon juice in a food processor or blender. Pulse until completely smooth and creamy.
- Slow Drizzle: With the motor running, slowly drizzle in the neutral oil and then the olive oil in a thin, steady stream. The mixture will thicken dramatically into a rich aioli.
- Season: Stop the motor, scrape down the sides, and season with salt and white pepper to taste. Chill until ready to serve.
Part 3: Bread and Fry the Croquettes
- Set Up Breading Station: Set up a standard breading station: one shallow dish with flour, one with the whisked eggs, and one with Panko breadcrumbs.
- Coat Croquettes: Dredge each chilled croquette first in the flour (shake off excess), then dip into the egg wash, and finally coat thoroughly in the Panko breadcrumbs, pressing lightly to adhere.
- Chill Again (Crucial Tip): For a stable crust, return the breaded croquettes to the freezer for at least 20 minutes before frying.
- Deep Fry: Heat 2-3 inches of vegetable oil to 350 degree F (175 degree C) in a heavy-bottomed pot.
- Cook: Carefully place the croquettes (in batches) into the hot oil. Fry for 3-4 minutes, turning occasionally, until they are deep golden brown and the interior is hot.
- Serve: Remove with a slotted spoon and place on a wire rack lined with paper towels to drain. Serve immediately with a generous dollop of the Sea Urchin Aioli.
Chef's Tips
- Starch is Key: Do not substitute the sweet potato/tapioca starch with cornstarch for the filling. The gelatinous, slightly chewy (QQ) texture of the former is essential for the authentic Taiwanese-style omelet base.
- Uni Quality: For the aioli, use the freshest, highest-quality sea urchin you can find. Its creamy, oceanic sweetness is the star.
- Double Chill: Chilling the filling before shaping, and the croquettes after breading, is the most important step to prevent them from falling apart in the hot oil.
- Draining Oysters: Pat the oysters extremely dry before using them. Excess moisture will make the filling too wet and hard to roll.
