As the sun begins to set on a warm summer evening, there’s a certain magic in the air that calls for fresh, vibrant meals. This Slow Roasted Salmon with Fennel and Orange captures that very essence, transforming a simple dinner into a sensory experience. Picture this: a beautiful piece of salmon, succulent and flaky, its flavors enhanced by the aromatic notes of fennel and the brightness of sweet oranges.
I developed this recipe during one of those lazy summer days when the garden was bursting with fresh herbs and citrus from the market was just too tempting to resist. With just a handful of wholesome ingredients and a gentle roast in the oven, you’ll discover how easy it is to create a dish that’s not only stunning but also healthy and satisfying. Whether you’re entertaining guests or just looking to spice up a weeknight meal, this recipe is sure to please. Let’s dive into the simple steps that will take your taste buds on a delicious journey to the Mediterranean!
Why is Slow Roasted Salmon with Fennel and Orange a Must-Try?
Simplicity at its finest: This recipe is straightforward and requires minimal culinary skills, making it perfect even for novice cooks.
Bursting with flavor: The combination of fresh herbs, citrus notes, and aromatic fennel elevates the salmon to new heights, ensuring each bite is deliciously memorable.
Healthy indulgence: Light yet satisfying, this dish is gluten-free and low-carb-friendly, perfect for your summer dinner table.
Versatile options: Feel free to swap in different fish or citrus fruits to personalize your meal and keep it exciting.
Perfect for gatherings: Serve this stunning dish to impress your friends or family at any summer celebration, and bask in their compliments!
Slow Roasted Salmon with Fennel and Orange Ingredients
For the Salmon
• Salmon – A versatile main protein; sockeye or king salmon can be amazing alternatives for richness.
For the Marinade
• Extra-Virgin Olive Oil – Enhances moisture and flavor; avocado oil works well if you’re looking for a lighter option.
• Orange – Adds a sweet and tangy profile; feel free to use lemon in a pinch for a zesty swap.
• Fennel Bulb – Contributes a mild anise flavor; if unavailable, celery can provide a similar crunchy texture.
• Shallot – Offers a subtle onion taste; replace with a small onion or scallion for similar flavor depth.
• Lemon – Brightens the dish; lime is a fitting alternative if you’re out of lemons.
• Honey – A natural sweetener that balances the flavors; for a vegan twist, maple syrup works perfectly.
For Freshness
• Fresh Herbs (Basil, Tarragon, Dill, Mint) – Infuses the dish with wonderful fragrance; mix and match for personal taste.
For Seasoning
• Kosher Salt and Black Pepper – Essential for enhancing the overall flavor; opt for sea salt or your favorite seasoning blend.
This Slow Roasted Salmon with Fennel and Orange is a delightful culinary journey you won’t want to miss!
How to Make Slow Roasted Salmon with Fennel and Orange
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Preheat the oven to 200°F (93°C) and ensure the rack is positioned in the center for even cooking. This low temperature is key to gently roasting the salmon to perfection.
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Line a baking sheet with parchment paper, then place the salmon skin-side down. Brush the top with ½ tablespoon of extra-virgin olive oil, allowing it to soak up all that delicious flavor.
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Juice half of the orange for its fresh zesty goodness and thinly slice the other half into half-moons. This will provide a beautiful garnish and extra juicy bites throughout the dish.
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Mix in a bowl: olive oil, sliced fennel, orange juice, orange pieces, shallot, lemon zest, lemon juice, honey, fresh herbs, salt, and pepper. Stir gently to combine, creating a fragrant marinade that enhances the salmon.
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Spread the orange-fennel mixture evenly over the salmon. Allow those vibrant flavors to mingle beautifully on top of the rich fish.
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Roast in the oven for 30-45 minutes, depending on the thickness of your salmon. Aim for the center to reach around 125°F (52°C), ensuring it’s vibrantly colored yet perfectly cooked through.
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Serve directly from the baking sheet, drizzling with any luscious pan juices. This ensures each bite is bursting with flavor and moisture.
Optional: Garnish with extra fresh herbs for an added pop of color and aroma.
Exact quantities are listed in the recipe card below.
Expert Tips for Slow Roasted Salmon
- Choose Quality Fish: Opt for high-quality salmon, such as sockeye, coho, or king. It makes a noticeable difference in flavor and texture.
- Watch the Time: Keep an eye on cooking time; the thickness of the salmon can vary cooking time. Aim for a tender and juicy center.
- Adjust for Fennel: If your fennel isn’t tender after the initial roast, don’t hesitate to roast a bit longer until it reaches your preferred softness.
- Store Smart: Leftover orange-fennel topping can be kept in an airtight container, making for a flavorful side salad during the week.
- Use Fresh Herbs: Fresh herbs pack a punch! Feel free to mix and match herbs based on what’s in season or what you have on hand, enhancing your slow roasted salmon dish.
What to Serve with Slow Roasted Salmon with Fennel and Orange?
As you’re savoring the delightful flavors of your salmon, consider these perfect pairings that will elevate your meal and create a memorable dining experience.
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Creamy Mashed Potatoes: The buttery richness of mashed potatoes beautifully contrasts with the vibrant, citrusy salmon, making every bite comforting and satisfying.
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Crispy Roasted Asparagus: Tender yet slightly crispy asparagus adds a fresh crunch, enhancing the meal’s visual appeal while complementing the fish’s flavors.
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Quinoa Salad: A light, zesty quinoa salad with cucumbers, cherry tomatoes, and a lemon vinaigrette adds a refreshing note, balancing the dish while keeping it healthy.
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Grilled Vegetables: A medley of grilled seasonal vegetables provides char and smokiness, perfectly balancing the tender, roasted salmon with a delightful burst of sweetness.
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Garlic Herb Couscous: Fluffy couscous infused with garlic and fresh herbs adds a lovely texture and flavor that pairs marvelously with the fragrant salmon.
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White Wine Spritzer: A chilled white wine spritzer with lemon is a refreshing drink that enhances the meal’s summer vibes and complements the citrus notes in the salmon.
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Pineapple Coconut Sorbet: For dessert, a light pineapple coconut sorbet offers a tropical finish that’s refreshing and palate-cleansing after the rich salmon.
Experience the essence of a joyful summer evening by creating a beautiful spread that celebrates fresh, vibrant flavors!
Slow Roasted Salmon with Fennel and Orange Variations
Feel free to explore your culinary creativity with this delightful dish! Each twist can enhance flavors and cater to dietary preferences.
- Citrus Swap: Try grapefruit or lime instead of orange for a unique flavor profile that’s just as vibrant.
- Herbal Infusion: Experiment with different herbs like cilantro or parsley for a fresh twist that complements the salmon beautifully.
- Nutty Crunch: Add toasted pine nuts or slivered almonds on top for an unexpected crunch that contrasts wonderfully with the tender fish.
- Spice It Up: Incorporate a pinch of red pepper flakes for a spicy kick that balances the sweet and savory notes perfectly.
- Fish Variation: For a twist, use fresh lake trout or halibut; just be mindful of adjusting the cooking time slightly as needed.
- Vegan Delight: Replace salmon with thick slices of eggplant or zucchini for a plant-based alternative, roasting until tender.
- Creamy Addition: Top the dish with a dollop of herb-infused yogurt or a splash of tahini to bring in a creamy, rich element.
- Sweet Touch: Drizzle with balsamic reduction post-roasting for a tangy-sweet glaze that elevates the entire dish.
Each variation invites you to create a personal touch, making this Slow Roasted Salmon with Fennel and Orange a dish you’ll enjoy again and again!
How to Store and Freeze Slow Roasted Salmon with Fennel and Orange
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Room Temperature: It’s best to avoid leaving the salmon out at room temperature for more than 2 hours to ensure food safety.
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Fridge: Store any leftover slow roasted salmon in an airtight container in the refrigerator for up to 3 days.
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Freezer: If you want to save it for later, freeze the salmon for up to 2 months. Wrap it tightly in plastic wrap and then in aluminum foil for best results.
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Reheating: To reheat, thaw the salmon overnight in the fridge and warm it gently in a preheated oven at 300°F (150°C) for about 10-15 minutes, preserving its moisture and flavor.
Make Ahead Options
These Slow Roasted Salmon with Fennel and Orange are perfect for busy weeknights and meal prep! You can prep the marinade (olive oil, sliced fennel, orange juice, shallot, lemon zest, lemon juice, honey, herbs, salt, and pepper) up to 24 hours in advance; simply store it in an airtight container in the refrigerator to maintain freshness. The salmon can also be seasoned and placed in the baking sheet up to 3 days ahead – just keep it covered in the fridge. When ready to serve, combine the salmon with the marinade and roast according to the recipe instructions for the same delicious results. Enjoy effortless dinners without compromising on flavor!
Slow Roasted Salmon with Fennel and Orange Recipe FAQs
How do I choose the best salmon for this recipe?
Absolutely! Look for fresh, high-quality salmon fillets that have a vibrant color and a mild, clean aroma. Avoid any that have dark spots or a fishy smell. Sockeye and king salmon are fantastic choices for their rich flavor and tenderness, but you can also use farmed or coho salmon if that’s what you have on hand.
What’s the best way to store leftovers?
Leftover slow roasted salmon can be stored in an airtight container in the refrigerator for up to 3 days. If you have extra orange-fennel topping, that’s delicious as a salad later in the week! Just tuck it in the fridge as well, and it will stay fresh.
Can I freeze leftover salmon?
Yes, you can freeze slow roasted salmon for up to 2 months! First, wrap the cooled salmon tightly in plastic wrap to prevent freezer burn. For extra protection, follow up with a layer of aluminum foil. To reheat, thaw it overnight in the fridge and gently warm in a preheated oven at 300°F (150°C) for about 10-15 minutes, preserving its delicious moisture.
What should I do if the fennel is still firm after roasting?
If your fennel isn’t tender after the initial cooking time, no worries! Simply increase the roasting time by an additional 10-15 minutes. Keep an eye on it, and you’ll want to make sure it’s tender and caramelized to your liking. A gentle roast ensures it’s flavorful and soft, perfect alongside your salmon!
Is this recipe suitable for dietary restrictions?
Very! This slow roasted salmon recipe is naturally gluten-free and can easily fit a low-carb lifestyle, especially if paired with veggies or salads. If you have allergies to certain ingredients, feel free to make substitutions like using maple syrup instead of honey for a vegan-friendly option. Ensure that all ingredients are suitable for your dietary needs.
How can I enhance flavor with fresh herbs?
Using fresh herbs is a delightful way to elevate this dish! I recommend experimenting with a variety of herbs such as basil, dill, or mint. Simply chop them finely and mix them into the orange-fennel topping before spreading on the salmon. This burst of freshness will amplify flavors beautifully!

Juicy Slow Roasted Salmon with Fennel and Orange Delight
Ingredients
Equipment
Method
- Preheat the oven to 200°F (93°C) and ensure the rack is positioned in the center.
- Line a baking sheet with parchment paper and place the salmon skin-side down. Brush with olive oil.
- Juice half of the orange and slice the other half into half-moons for garnish.
- In a bowl, mix olive oil, sliced fennel, orange juice, orange pieces, shallot, lemon zest, lemon juice, honey, fresh herbs, salt, and pepper.
- Spread the orange-fennel mixture evenly over the salmon.
- Roast in the oven for 30-45 minutes until the center reaches about 125°F (52°C).
- Serve directly from the baking sheet, drizzling with pan juices.










