Glazed Langoustines with Compressed Rhubarb and Nut-Brown Butter Emulsion

🌍 Cuisine: New Nordic
🏷️ Category: Appetizer
⏱️ Prep: 45 minutes
🍳 Cook: 15 minutes
👥 Serves: 4 servings

📝 About This Recipe

This dish captures the essence of the New Nordic movement, balancing the deep, oceanic sweetness of pristine langoustines with the sharp, acidic crunch of early-season rhubarb. The richness of the brown butter ties the elements together, creating a sophisticated play of temperatures and textures. It is a masterclass in minimalism, where high-quality seasonal ingredients are elevated through precise technique and forest-inspired aesthetics.

🥗 Ingredients

The Langoustines

  • 8 pieces Live XL Langoustines (shelled and deveined, tails kept intact)
  • 50 grams Unsalted Butter (for gentle poaching)
  • 1 pinch Flaky Sea Salt (Maldon or similar)

Compressed Rhubarb

  • 2 medium Rhubarb Stalks (vibrant red variety preferred)
  • 100 ml Apple Juice (freshly pressed)
  • 2 tablespoons Elderflower Syrup (adds a floral Nordic note)

Brown Butter Emulsion

  • 150 grams Unsalted Butter (high-quality European style)
  • 1 tablespoon Lemon Juice (freshly squeezed)
  • 50 ml Heavy Cream (at room temperature)
  • 1/2 teaspoon Soy Sauce (for umami depth)

Garnish & Finishing

  • 1 handful Fresh Dill (picked into small fronds)
  • 2 pieces Radish (shaved paper-thin in ice water)
  • 1 teaspoon Hazelnut Oil (to finish)

👨‍🍳 Instructions

  1. 1

    Prepare the langoustines by removing the heads and shells, leaving only the tail meat. Carefully remove the intestinal tract using a small toothpick or paring knife. Set aside on a cold plate.

  2. 2

    Wash the rhubarb and slice into 5cm long batons. If you have a vacuum sealer, place the rhubarb, apple juice, and elderflower syrup in a bag and seal on high pressure. If not, submerge the rhubarb in the liquid in a small bowl and let macerate for 30 minutes.

  3. 3

    To make the Beurre Noisette (brown butter), place 150g of butter in a small light-colored saucepan over medium heat. Whisk constantly as the butter melts, foams, and eventually turns a golden-nut brown with a toasted aroma.

  4. 4

    Immediately remove the brown butter from the heat and pour into a clean bowl to stop the cooking process, making sure to include the flavorful brown solids.

  5. 5

    In a separate small pan, bring the heavy cream to a gentle simmer. Slowly whisk in the warm brown butter, one tablespoon at a time, to create a stable, thick emulsion.

  6. 6

    Season the brown butter emulsion with the lemon juice, soy sauce, and a pinch of salt. Keep in a warm spot (not hot) to prevent splitting.

  7. 7

    Remove the rhubarb from the liquid. Slice half of the batons into very thin discs for plating and keep the others whole.

  8. 8

    In a heavy-bottomed skillet, melt the remaining 50g of butter over medium-low heat. Once the butter is foaming but not browning, add the langoustine tails.

  9. 9

    Butter-poach the langoustines for approximately 90 seconds per side. They should be just opaque and succulent, not firm or rubbery. Baste them constantly with the warm butter.

  10. 10

    Place two langoustine tails in the center of each warm plate. Season with a touch of flaky sea salt.

  11. 11

    Arrange the compressed rhubarb batons and discs around the langoustines, creating a naturalistic, 'forest floor' look.

  12. 12

    Using a hand blender, froth the brown butter emulsion until light and airy. Spoon the foam and sauce generously over the langoustines.

  13. 13

    Garnish with the shaved radish, fresh dill fronds, and a few drops of hazelnut oil for an extra layer of earthiness. Serve immediately.

💡 Chef's Tips

Use the freshest langoustines possible; if they are live, put them in the freezer for 10 minutes to humanely stun them before prepping. When browning the butter, use a light-colored pan so you can accurately judge the color change and avoid burning the milk solids. If your emulsion splits, add a few drops of warm water and whisk vigorously to bring it back together. Don't discard the langoustine heads! Roast them later to make a deep, flavorful shellfish stock or bisque. Ensure the rhubarb is sliced very thinly if not using a vacuum sealer to ensure the marinade penetrates the fiber.

🍽️ Serving Suggestions

Pair with a crisp, high-acidity white wine like a Dry German Riesling or a Chablis. Serve with a side of warm, sourdough bread to soak up the excess brown butter emulsion. A chilled glass of sparkling apple cider (dry) complements the rhubarb acidity beautifully. For a full Nordic experience, serve on stone or ceramic plates in neutral, earthy tones.