Mastering A La Nage: Impress with This Elegant Fish Recipe

Cooking fish can often seem daunting, especially when trying to impress someone special. However, the French cooking method known as a la nage, which translates to "in the swim," offers a simple yet sophisticated way to prepare fish. This technique involves poaching fish in a flavorful broth and serving it with the fragrant poaching liquid. In this post, we will explore how to create this elegant dish at home, step by step.

What is A La Nage?

A la nage is a poaching method that emphasizes the use of a flavorful liquid to enhance the fish's natural taste. While it may sound fancy, this recipe can be prepared quickly and easily, making it perfect for impressing guests without spending hours in the kitchen.

Ingredients Needed

To create this dish, you will need the following ingredients:

• For the Tarragon Oil:

  • 6 cups of boiling water
  • 2 teaspoons of salt
  • 1/3 cup of fresh parsley (tightly packed leaves)
  • 1 tablespoon of fresh tarragon
  • 1/3 cup of vegetable oil

• For the Poaching Liquid (Nage):

  • 2 cups of water
  • 1 parsnip (peeled and thinly sliced)
  • 1 thinly sliced shallot
  • 1 piece of Parm rind (2.5 by 1 inch)
  • 2 strips of lemon peel
  • 2 teaspoons of lemon juice
  • 1/2 teaspoon of black peppercorn
  • 1/4 teaspoon of vanilla
  • 1 teaspoon of salt

• For the Fish:

  • Halibut fillets (5-6 ounces each)
  • 1 teaspoon of kosher salt
  • Fresh tarragon for garnish

Preparing the Tarragon Oil

1. Blanch the Herbs:
   Start by bringing 6 cups of water to a boil. Add 2 teaspoons of salt and whisk until dissolved. Blanch the parsley for 30 seconds, followed by the tarragon for a quick blanch. Use a fine mesh strainer to remove the herbs and shock them under cold water to stop the cooking process.

2. Dry the Herbs:
   Squeeze out as much moisture as possible from the herbs using paper towels. This step is crucial since oil and water do not mix.

3. Blend the Oil:
   Combine the dried herbs with 1/3 cup of vegetable oil in a blender. Blend for about two minutes until finely chopped and vibrant green.

Preparing the Poaching Liquid (Nage)

1. Build the Broth:
   In a pot, combine 2 cups of water, the sliced parsnip, shallot, Parm rind, lemon peel, lemon juice, black peppercorn, vanilla, and salt. Bring this mixture to a boil, then cover and reduce to a simmer for 20-25 minutes to infuse the flavors.

2. Add the Fish:
   After simmering, bring the poaching liquid back to a boil. Carefully add the halibut fillets skin side down, along with some fresh tarragon. Spoon some of the poaching liquid over the fish to help with cooking.

3. Poach the Fish:
   Cook the fish for about 4-7 minutes until it reaches an internal temperature of 110 degrees Fahrenheit. Once done, remove from heat and let it rest in the poaching liquid, allowing carryover cooking to bring it to a safe 135 degrees.

Final Touches

1. Strain the Broth:
   After the fish has rested, strain the poaching liquid to remove the solids, leaving behind a fragrant broth.

2. Taste and Adjust:
   Taste the broth and adjust with a splash of lemon juice or a pinch of salt if necessary.

3. Plate the Dish:
   Pour the broth into a serving bowl, place the poached fish on top, and garnish with whole grain mustard, fresh tarragon, and a drizzle of the tarragon oil for an elegant presentation.

Conclusion

This a la nage recipe is not only visually stunning but also packed with layers of flavor. The combination of the delicate poached halibut and the subtly sweet and earthy nage, enhanced by the unique addition of vanilla, creates a dish that is sure to impress. With its straightforward preparation, you can enjoy fine dining at home without the complexity. So, gather your ingredients and get ready to wow your guests with this exquisite fish dish!