- Shred raw potato.
- Soak in cold water for a few minutes; drain well and sprinkle with cornstarch.
- In a skillet, heat the 2 tablespoons oil to medium high.
- Divide shredded potato into 4 patties; fry until golden brown on both sides.
- Drain.
- Cut fish into 2 pieces; season with fish spice.
- Heat a skillet over high heat; sear fish for about 45 seconds on each side.
- On serving plates, place a piece of seared fish between two potato patties.
- In a small saucepan, heat veal stock, ponzu sauce, and butter; drizzle over sandwiches.
Makes 2 appetizer servings.
*To make veal stock: Dissolve a veal bouillon cube in 2 tablespoons hot water.