Instructions
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Marinate the Fish: Place the trout fillet in a large shallow dish or a resealable plastic bag. Pour the marinade over the fish, ensuring it is fully coated. Cover the dish or seal the bag and refrigerate for at least 1 hour, or up to 4 hours for deeper flavor.
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Preheat and Prepare: When ready to cook, preheat your oven to 450°F (230°C). Line a rimmed baking sheet with a large piece of aluminum foil, large enough to fold up around the fish.
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Bake: Remove the trout from the marinade and place it skin-side down (if applicable) on the prepared foil. Fold the edges of the foil up around the fish to create a “boat” or rimmed tray to contain the juices. Pour the remaining marinade evenly over the top of the fillet.
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Cook to Perfection: Bake on the center rack for 15-18 minutes, or until the internal temperature reaches 145°F (63°C) and the flesh flakes easily with a fork.
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Pro Tip: For a more caramelized, golden-brown top, switch the oven to a high broil for the final 2-3 minutes of cooking. Watch closely to prevent burning.
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Serve: Carefully remove the baking sheet from the oven. Drizzle the melted butter over the hot trout. Garnish with fresh lemon slices and herbs if desired. Serve immediately.
Notes
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What is Steelhead Trout? Steelhead is very similar to salmon in flavor, texture, and color, but is technically a type of trout. If you can’t find it, salmon is an excellent substitute.
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Don’t Skip the Marinate: This crucial step allows the flavors to penetrate the fish, making it more tender and flavorful.