- 1/2 cup soy sauce
- 2 tablespoons vegetable oil
- 1 teaspoon dried rosemary
- 2/3 cup ketchup
- 2 tablespoons lemon juice
- 6 (6 ounce) fillets rainbow trout
- In a medium bowl, mix together soy sauce, vegetable oil, dried rosemary, ketchup and lemon juice. Set marinade aside.
- Place rainbow trout in a medium baking dish, and pour marinade over the fish. Refrigerate for approximately 1 hour, turning trout once.
- Preheat an outdoor grill for medium high heat and lightly oil grate. Drain excess marinade from fish, and transfer to a small saucepan. Bring marinade to a boil, and than remove from heat.
- Place trout on the prepared grill. Baste fish with remaining marinade sauce while grilling. Cook approximately 5 minutes on each side, or until tender and easily flaked.