If you are searching for a dish that feels like a warm hug on a plate, then the Slow Roasted Salmon with Fennel and Citrus Recipe is about to become your new favorite. This vibrant, succulent salmon is cooked gently, allowing its natural richness to shine through while being enhanced by the bright zest of citrus and the subtle anise notes from fennel. It’s simple yet sophisticated, combining fresh ingredients in a way that makes every bite burst with balanced flavors. Whether it’s a casual weeknight or a special occasion, this slow-roasted marvel will bring a touch of elegant comfort to your table.

Ingredients You’ll Need

A large, bright orange fish fillet lies in a white rectangular dish with colorful, detailed blue, yellow, and red patterns around the edges. The fish is covered with small green herb leaves scattered on top, adding contrast and a fresh look. It rests in a red liquid mixed with orange slices and small bits of herbs or spices, creating a layered effect of colors and textures. The dish is set on a white marbled surface photo taken with an iphone --ar 4:5 --v 7

These ingredients might be few, but each one plays a crucial role in elevating this dish’s flavor profile. From the tender salmon that’s the star of the show to the crisp fennel and zesty citrus, every component adds its unique texture and brightness to the Slow Roasted Salmon with Fennel and Citrus Recipe.

1 lb wild caught salmon: Fresh, high-quality salmon ensures the best texture and flavor.
2 small blood oranges: Adds a sweet, vibrant tang and beautiful color contrast.
1 lemon, half sliced half juiced: Provides brightness and a subtle tartness that cuts through the richness.
1/4 cup extra virgin olive oil: Brings richness and helps the salmon stay moist during roasting.
Handful of fresh dill, chopped: Offers an herbal freshness that complements the seafood perfectly.
1/2 tsp sea salt: Enhances all the natural flavors without overpowering.
1/4 tsp black pepper: Adds just enough heat and depth.
1 small fennel bulb: Lends a subtle licorice flavor and crunchy texture beneath the tender fish.
1 red onion: Sweet and slightly sharp, it softens beautifully as it roasts with the salmon.

How to Make Slow Roasted Salmon with Fennel and Citrus Recipe

Step 1: Prepare the Citrus Marinade

Start by juicing one blood orange, then slice the other one thinly to use as a garnish. Cut your lemon in half, squeezing juice from one half and slicing the other half for layering. Mixing the citrus juices with olive oil, fresh dill, sea salt, and black pepper creates a vibrant marinade that brings a bright yet mellow flavor to the salmon.

Step 2: Marinate the Salmon

Place the salmon skin-side up in a shallow dish and pour half of your marinade over it. Let it soak in the flavors at room temperature for about 30 minutes, or refrigerate for up to an hour if you want to plan ahead. This step is essential as it allows the fish to absorb the citrusy, herby notes, ensuring every bite is bursting with flavor.

Step 3: Prepare the Vegetables and Preheat Oven

While the salmon marinates, thinly slice the fennel bulb and red onion. Their natural sweetness will balance the citrusy tang beautifully once roasted. Preheat your oven to a low 275 degrees Fahrenheit for slow roasting, which is the secret to achieving flaky, tender salmon without drying it out.

Step 4: Assemble and Roast

Drizzle olive oil over your baking dish to prevent sticking, then create a bed with the fennel, onion, lemon, and blood orange slices. Place the salmon on top, skin-side down, and pour the remaining marinade over everything. This layering lets the salmon gently roast over the aromatic vegetables and citrus, infusing it with layers of flavor. Roast for 35-40 minutes until the salmon is perfectly cooked through yet moist and tender.

How to Serve Slow Roasted Salmon with Fennel and Citrus Recipe

A large, raw piece of pinkish-red fish fillet is placed in the center of a white rectangular baking dish. The fish is covered with small green herb pieces, giving it a fresh look. Underneath the fish, there is a thin layer of thinly sliced white and purple onions, mixed with round slices of yellow and red citrus fruits that peek out around the edges of the fish. The baking dish sits on a white marbled surface, making the colors of the fish and vegetables stand out. photo taken with an iphone --ar 4:5 --v 7

Garnishes

Fresh dill sprigs or a sprinkle of chopped fresh herbs like parsley or chives bring a lovely herbal brightness and visual appeal. You can also add a few extra fresh citrus slices on the side for decoration and a fresh burst of flavor.

Side Dishes

This slow roasted salmon pairs beautifully with simple steamed asparagus, a light quinoa salad, or roasted baby potatoes. The key is to keep sides fresh and light so they complement without overpowering the delicate salmon and citrus flavors.

Creative Ways to Present

For a dinner party, serve the salmon right on the citrus and fennel bed on a large platter, so guests can admire the vibrant colors and aromas. Alternatively, portion the salmon and vegetables on individual plates, adding a drizzle of the pan juices and a fresh lemon wedge for a refined yet inviting presentation.

Make Ahead and Storage

Storing Leftovers

Place any leftover salmon and vegetables into an airtight container and refrigerate within two hours of cooking. It will keep well for up to 2 days, retaining its moisture and flavor if stored properly.

Freezing

While it’s best enjoyed fresh or refrigerated, you can freeze leftover salmon wrapped tightly in plastic wrap and foil to preserve its texture. Freeze for up to one month and thaw overnight in the refrigerator before reheating.

Reheating

Reheat gently in a low oven at around 275 degrees Fahrenheit or use a microwave on low power to prevent the salmon from drying out. Adding a splash of olive oil or a squeeze of fresh lemon juice during reheating helps retain moisture and freshness.

FAQs

Can I use regular oranges instead of blood oranges?

Absolutely! Regular oranges will provide a sweeter, less tart flavor, but they complement the salmon beautifully and make the dish just as delicious.

Is it necessary to roast the salmon at a low temperature?

Slow roasting at 275 degrees Fahrenheit ensures the salmon cooks evenly and stays tender and moist, preventing the edges from drying out or becoming tough.

Can I prepare this recipe with frozen salmon?

It’s best to use fresh salmon for this recipe to achieve the best texture and flavor, but if using frozen, make sure it’s fully thawed and patted dry before marinating and roasting.

Can I make the Slow Roasted Salmon with Fennel and Citrus Recipe dairy-free?

Yes! This recipe is naturally dairy-free, relying on olive oil and fresh ingredients for richness, so it’s perfect for those avoiding dairy.

What other herbs work well with this salmon recipe?

Fresh dill is classic here, but you can also experiment with tarragon, basil, or thyme for a slightly different herbal twist that pairs beautifully with citrus and fennel.

Final Thoughts

There is something truly magical about the way the Slow Roasted Salmon with Fennel and Citrus Recipe comes together — tender, flaky fish bursting with lively citrus notes and fragrant fennel. It’s a dish that feels both special and comforting, perfect for sharing with family or impressing guests. Don’t hesitate, give this recipe a try and bring a little sunshine to your table!

Slow Roasted Salmon with Fennel and Citrus Recipe