Whole Roasted Branzino With Tangerine-Fennel Vinaigrette

Vinaigrette is more than just a dressing, On whole roasted fish it adds a splash of light, bright flavor.

By
Daniel Gritzer
Daniel Gritzer
Editorial Director
Daniel joined the Serious Eats culinary team in 2014 and writes recipes, equipment reviews, articles on cooking techniques. Prior to that he was a food editor at Food & Wine magazine, and the staff writer for Time Out New York's restaurant and bars section.
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Updated January 19, 2024
An overhead view of a piece of branzino drizzled with citrus vinaigrette on a while plate next to sprigs of fresh rosemary.
A sauce in all senses of the word, a vinaigrette is for more than just salads. .

Serious Eats / Daniel Gritzer

Why It Works

  • A blend of fresh tangerine and lemon juices creates a dressing with a perfect 3:1 ratio of oil to acid for a perfectly smooth emulsion that's both tart enough (thanks to the lemon juice) and flavorful enough (thanks to the tangerine juice).
  • Tangerine zest and ground fennel seed add an extra hit of flavor and complexity.
  • Stuffing the bellies of the whole fish adds extra aroma and flavor.

Let's play a little word association game.

Vinaigrette.

Lemme guess, you said salad, right?* That's usually how I think too, and for good reason—salad and vinaigrette are as natural a pair as ham and cheese, egg and cheese, and bacon and eggs (if you think eggs and ketchup belong on that list, close your browser tab now, I'm sending you to your room for a time out...come back when you've thought this over a little more carefully and we'll talk).

*You didn't? Good for you, you're officially part of the .0000000000001% of the population that doesn't make that association, as determined by the National Lexicographical Society of Salads Not Including Egg, Chicken, or Tuna (NLSSNIECT).

A close-up of two whole branzini, their bellies stuffed with fennel fronds, rosemary, and tangerine slices, on brown parchment paper.

Serious Eats / Daniel Gritzer

But it helps to remember that a vinaigrette is more than just a dressing for vegetables, it's a sauce in its own right. And given how easy vinaigrettes are to make, they should be used more often by home cooks looking for a way to add flavor and moisture to a dish without the work so many other sauces require.

After all, what's chimichurri but a garlic- and herb-packed vinaigrette? And we eat that on steak, not salad. This simple vinaigrette could go with practically anything, from a mayo-free chicken salad to shredded, slow-cooked pork shoulder (barbecue sauce isn't the only thing you can put on stuff like that). And this soy vinaigrette would work wonderfully with cold poached chicken or salmon.

Two whole branzini, bellies stuffed with fennel fronds, rosemary, and tangerine slices, laying on brown parchment paper.

Serious Eats / Daniel Gritzer

Speaking of salmon, fish, like the whole branzino that I roasted here, is great when paired with a vinaigrette. It's just begging for those light, bright flavors...it's like a squeeze of lemon juice with a lot more dimension. To make it, I used the same tangerine and fennel vinaigrette that I also recently tossed on a simple fennel and radicchio salad. Following my basic instructions for roasting whole fish, I stuffed these branzini with aromatics—like slices of tangerine and fresh fennel fronds—that dovetail with the wintery flavors in the sauce.

It's a simple yet elegant dinner that comes together in very little time (shave off even more minutes by mastering the art of filleting whole cooked fish...it's easy and looks a heck of a lot better than hacking at those beautiful fish with a fork).

If you want, you can serve it with a simple salad tossed in more of the vinaigrette—because what's a vinaigrette without some salad, right?

January 2015

Recipe Details

Whole Roasted Branzino With Citrus Vinaigrette Recipe

Prep 15 mins
Cook 30 mins
Active 15 mins
L 0 mins
Total 45 mins
Serves 4 servings

Ingredients

  • Water
  • Kosher salt
  • 4 whole branzini (about 1 pound each), scaled and gutted (see Notes)
  • Freshly ground black pepper
  • Extra-virgin olive oil, for drizzling
  • 4 rosemary sprigs
  • Fennel fronds from 1 bulb of fennel (optional)
  • 1 tangerine, halved and thinly sliced into half moons
  • Tangerine and Fennel Vinaigrette

Directions

  1. Fill large bowl about halfway with room-temperature water and add enough salt to taste, stirring to dissolve salt. Add fish and let soak for 10 minutes. Drain fish and pat dry inside and out with paper towels.

  2. Preheat oven to 350°F (175°C) and position rack in center of oven. Line a rimmed baking sheet with parchment paper. Season fish inside and out with salt and pepper and rub with olive oil. Stuff belly cavities with rosemary, fennel fronds, and tangerine slices.

    Two whole branzini, bellies stuffed with herbs and tangerine slices, laying on a sheet pan lined with brown parchment paper.

    Serious Eats / Daniel Gritzer

  3. Roast fish until an instant-read thermometer inserted into thickest part registers 135°F (58°C), 20 to 25 minutes; alternatively, roast until fins come right off when pulled and flesh can be felt to flake under the skin when you press on it. Remove from oven and let rest 5 minutes.

  4. Gently carve fillets from bone cage, transfer to plates, and drizzle with vinaigrette. Serve.

Notes

If you can't find branzino, you can substitute any other white-fleshed fish of a similar weight (or a single fish that's double the weight), such as snapper, bass, or porgy. Cooking times will change depending on the dimensions and weight of the fish you use.

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