- Rinse trout under cold water; dry thoroughly with paper towels.
- Heat oil in large nonstick skillet over medium heat until hot.
- Coat trout with mixture of flour and onion powder, shaking off excess. Add trout to skillet; cook 6 to 7 minutes. Turn trout over; cook 6 to 7 minutes longer, or until fish flakes easily with fork.
- Meanwhile, combine ponzu and ginger in small serving bowl.
- Fillet fish and discard bones. Drizzle portion of ponzu-ginger sauce over fish. Serve remaining sauce with fish.