Sole Florentine Au Gratin Recipe

Wow your loved ones with this elegant Sole Florentine Au Gratin! This restaurant-quality recipe, inspired by a "How to Win a Husband 101" secret, boasts a delicate balance of flavors. The flaky sole, baked to perfection, is nestled on a bed of spinach and smothered in a creamy, dreamy Mornay sauce. Even seafood skeptics will be amazed! This recipe is easily adaptable, with an optional shrimp-infused sauce for an extra touch of decadence. Prepare to impress – this dish is guaranteed to be a new family favorite!

Prep Time 20 mins
Cook Time 75 mins
Calories 286.2 kcal
Protein 51g
Rating Be the first
Sole Florentine Au Gratin 65

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Forktionary editorial kitchen team

The Forktionary Kitchen Team

Adapted from Food.com, then tested & standardized by Forktionary.

Ingredients for Sole Florentine Au Gratin

  • 2 (6-ounce) sole fillets
  • 2 tablespoons Madeira wine
  • 1 cup fish stock (or cooking liquid from sole plus water to make 1 cup)
  • 1 tablespoon lemon juice
  • 1/2 teaspoon salt and 1/8 teaspoon black pepper
  • 4 tablespoons (1/2 stick) butter
  • 4 tablespoons all-purpose flour
  • 1 teaspoon chicken bouillon granules
  • 1 teaspoon Dijon mustard
  • 1/2 cup heavy cream
  • 3/4 cup (approx. 170g) grated Swiss cheese, divided
  • 10 ounces fresh spinach
  • 1/4 cup finely chopped cooked shrimp (optional)

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How to Make Sole Florentine Au Gratin

  1. Preheat oven to 400°F (200°C).
  2. Rinse 2 (6-ounce) sole fillets and pat them completely dry.
  3. Gently fold each fillet in half and place them in a large, shallow baking dish.
  4. In a small bowl, whisk together 2 tablespoons Madeira wine and 1 tablespoon lemon juice. Pour evenly over the sole fillets.
  5. Season lightly with salt and freshly ground black pepper.
  6. Bake for 15-20 minutes, or until the fish flakes easily with a fork.
  7. Remove from oven and carefully drain the cooking liquid into a measuring cup. Add enough water to reach 1 cup of liquid; set aside.
  8. In a medium saucepan, melt 4 tablespoons (1/2 stick) butter over medium heat. Whisk in 4 tablespoons all-purpose flour, 1 teaspoon chicken bouillon granules, and 1 teaspoon Dijon mustard. Cook, stirring constantly, until bubbly and smooth (about 1 minute).
  9. Gradually whisk in the reserved fish stock and 1/2 cup heavy cream. Continue whisking until the sauce thickens and becomes bubbly.
  10. Reduce heat to low and stir in 1/2 cup (113g) grated Swiss cheese. Set aside.
  11. Squeeze excess moisture from 10 ounces fresh spinach.
  12. Arrange the spinach on the bottom of a 1 1/2-quart casserole dish. Place the baked sole fillets on top of the spinach.
  13. Sprinkle the remaining 1/4 cup (57g) grated Swiss cheese over the fish.
  14. Preheat oven to 450°F (230°C). Reheat the sauce gently over low heat.
  15. Spoon the sauce evenly over the fish and spinach.
  16. Bake for 7-8 minutes, or until the sauce is bubbly and lightly browned.
  17. Serve immediately. For an extra luxurious touch, stir in 1/4 cup of finely chopped cooked shrimp to the sauce before spooning over the fish.

Nutrition Information (Approximate per serving)

Sodium

26 g

Sugar

3g

Fat

43g

Carbs

2g

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Frequently Asked Questions

How long does it take to make Sole Florentine Au Gratin?

Sole Florentine Au Gratin takes about 95 minutes from start to finish — roughly 20 minutes to prepare and 75 minutes to cook.

How many calories are in Sole Florentine Au Gratin?

Sole Florentine Au Gratin has approximately 286.2 calories per serving, with about 51 g protein, 2 g carbohydrates and 24 g fat.

What ingredients do I need for Sole Florentine Au Gratin?

The key ingredients for Sole Florentine Au Gratin are Sole Fillets, Madeira Wine, Fish Stock, Lemon Juice, Salt And Pepper, Butter. See the full list with measurements above.

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