Mix all ingredients (except the fish) together to make a marinade. Put about 1/3 of the marinade in the bottom of a baking dish and place the trout in the dish in a single layer. Cover the trout with the rest of the marinade and refrigerate for 30 minutes to 1 hour.
Before the marinating time is up, preheat oven to 400°F.
Bake the fish in the marinade in preheated oven for 15 to 20 minutes until fish is browned but still moist.