The Sempione Atelier: Gentle Oven-Roasted Branzino with Shaved Fennel, Taggiasca Olives, and Lemon-Vermouth Butter
Silk-tender branzino fillets rest over a fragrant foundation of slow-melted fennel and buttery Taggiasca olives, gently roasted in a low oven bathed in dry vermouth. Finished with toasted pine nuts and a whisper of bright lemon butter, this is Northern Italian weeknight poise at its effortless best.
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Ingredients
- 4 fillets Branzino fillets(Skin-on, pin bones removed (about 5-6 oz each))
- 1 large Fennel bulb(Thinly shaved on a mandoline; fronds reserved for garnish)
- 2 medium Shallots(Peeled and finely sliced)
- 2 tbsp Extra virgin olive oil(Cold-pressed, high-integrity oil)
- 1/4 cup Dry white vermouth(Such as Martini & Rossi Riserva Speciale or Carpano Bianco)
- 3 tbsp Unsalted high-fat butter(Softened to room temperature)
- 1 Lemon(Zested for 1 tsp and juiced for 1 tbsp)
- 1/3 cup Taggiasca olives(Pitted and drained (or Castelvetrano if unavailable))
- 2 tbsp Pine nuts(Raw)
- 2 tbsp Fresh flat-leaf parsley(Finely minced)
- 1 tsp Flaky sea salt(Divided use)
- 1/2 tsp Freshly ground black pepper(Divided use)
- 1 tsp lemon zest(obtained from the listed lemon)
- 1 tbsp lemon juice(obtained from the listed lemon)
- a handful fennel fronds(reserved from the large fennel bulb)
Instructions
- 1
Preheat your oven to 325°F (165°C). In a shallow, ceramic baking dish, toss 1 large shaved fennel bulb and 2 medium finely sliced shallots directly with 2 tbsp extra virgin olive oil, 1/4 cup dry white vermouth, 1/2 tsp flaky sea salt, and 1/4 tsp freshly ground black pepper until glossy and evenly coated.
10 min
Tip: Spreading the fennel evenly ensures it behaves like a steady architectural plinth for the fish.
- 2
Slide the baking dish into the oven and roast gently until the fennel collapses into translucent, fragrant tenderness.
12 min
Tip: Gentle low heat coaxing is the secret here; you want the aromatic anise sweetness drawn out into the vermouth without any browning.
- 3
While the fennel softens, prepare the compound butter and fish. In a small ramekin, blend 3 tbsp softened unsalted butter, 1 tsp lemon zest, 1 tbsp lemon juice, 2 tbsp finely minced fresh parsley, and a tiny pinch of salt. Then pat 4 branzino fillets thoroughly dry with kitchen paper and season both sides with 1/2 tsp flaky sea salt and 1/4 tsp freshly ground black pepper.
8 min
Tip: Dry fish skin ensures the flesh roasts cleanly into a custard-like delicacy without turning soggy.
- 4
Carefully remove the baking dish from the oven. Nestle 4 branzino fillets skin-side up over the warm fennel bed. Scatter 1/3 cup Taggiasca olives into the gaps, and spoon the prepared lemon-vermouth butter evenly across the tops of the fillets. Return the dish to the oven to gently roast until the fish is opaque, glistening, and flakes delicately with a fork.
13 min
Tip: Resist the urge to turn up the heat. Slow, gentle convection poaching in the melting citrus-vermouth butter yields breathtakingly tender branzino.
- 5
While the branzino completes its gentle bake, toast 2 tbsp raw pine nuts in a dry skillet over medium-low heat for 3 to 4 minutes, swirling continuously until lightly golden and fragrant.
4 min
Tip: Pine nuts turn from golden to scorched in an instant, so never take your eyes off the pan.
- 6
Remove the baking dish from the oven and allow it to rest for 2 minutes. Spoon the shimmering vermouth-fennel juices over each fillet, then finish by scattering the toasted 2 tbsp pine nuts and a handful of reserved feathery fennel fronds over the top before serving immediately.
3 min
Tip: Serve straight from the baking dish at the table to capture the intoxicating steam as you break the crust.
Chef's Notes
In Milanese design, every element has a structural reason to exist. Here, the shaved fennel is your load-bearing foundation—absorbing dry vermouth, olive oil, and the gentle rendered juices of the branzino. Gentle oven roasting at 325°F is an effortless luxury for busy weeknights: it eliminates the splattering of stovetop searing and produces an incomparably tender, silky texture. Let the ingredients do the heavy lifting, pour yourself a glass of chilled Gavi di Gavi, and let the workday slip away.
Frequently Asked Questions
How long does The Sempione Atelier: Gentle Oven-Roasted Branzino with Shaved Fennel, Taggiasca Olives, and Lemon-Vermouth Butter take to make?
The Sempione Atelier: Gentle Oven-Roasted Branzino with Shaved Fennel, Taggiasca Olives, and Lemon-Vermouth Butter takes about 40 minutes total. That includes 15 minutes of prep and 25 minutes of cooking.
How many servings does this recipe make?
This recipe makes 4 servings.
What skill level is needed for The Sempione Atelier: Gentle Oven-Roasted Branzino with Shaved Fennel, Taggiasca Olives, and Lemon-Vermouth Butter?
This recipe is rated easy — it's beginner-friendly and straightforward.
What ingredients do I need for The Sempione Atelier: Gentle Oven-Roasted Branzino with Shaved Fennel, Taggiasca Olives, and Lemon-Vermouth Butter?
The main ingredients are: Branzino fillets, Fennel bulb, Shallots, Extra virgin olive oil, Dry white vermouth, Unsalted high-fat butter, Lemon, Taggiasca olives, Pine nuts, Fresh flat-leaf parsley, Flaky sea salt, Freshly ground black pepper, lemon zest, lemon juice, fennel fronds.
What type of meal is The Sempione Atelier: Gentle Oven-Roasted Branzino with Shaved Fennel, Taggiasca Olives, and Lemon-Vermouth Butter?
The Sempione Atelier: Gentle Oven-Roasted Branzino with Shaved Fennel, Taggiasca Olives, and Lemon-Vermouth Butter is categorized as: dinner.
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