One of the most celebrated dishes in classic French cuisine, Fish with Potato Scales transforms a handful of simple ingredients into an elegant, restaurant-quality entrée. Delicate red snapper is crowned with paper-thin potato slices arranged to resemble shimmering fish scales, then pan-roasted until the potatoes become beautifully crisp and golden while the fish remains moist and flaky. Finished with a silky Orange Beurre Blanc and a rich Veal Jus, this timeless dish is a masterclass in technique, balance, and presentation that is perfect for an unforgettable dinner.

Prep Time: 45 minutes
Cook Time: 40 minutes
Additional Time: 30 minutes (chilling)
Total Time: 1 hour 55 minutes
Yield: 2 servings

Ingredients

Fish

• 2 red snapper fillets (5 to 6 ounces each), skin and pin bones removed
• 1 large russet potato, or 8 to 10 small Ratte potatoes
• 1/4 Cup clarified butter, divided (2 Tablespoons for the potato slurry and 2 Tablespoons for cooking)
• 1 1/2 teaspoons potato starch
• Fine sea salt

Orange Beurre Blanc

• 1 small shallot, thinly sliced
• Zest of 2 large oranges
• Juice of 1 1/2 oranges (reserve the remaining 1/2 orange for finishing)
• 1/2 Cup dry white wine
• 1 teaspoon whole black peppercorns
• 2 sprigs fresh rosemary
• 3 Tablespoons cold unsalted butter, cut into 1/2-inch cubes
• 2 Tablespoons crème fraîche
• Fine sea salt
• 1 teaspoon neutral oil

Veal Jus

• 2 quarts unsalted veal stock
• 1 1/2 shallots, thinly sliced
• 2/3 Cup dry white wine
• 1 teaspoon neutral oil

Preparation

Prepare the Fish

1. Using a mandoline, slice the potato approximately 1 mm thick. If using a russet potato, cut rounds approximately 5/8 inch in diameter with a small round cutter. If using Ratte potatoes, simply peel and slice.
2. Bring a saucepan of lightly salted water to a boil. Blanch the potato slices until just tender but still holding their shape, about 1 minute. Immediately transfer them to an ice bath. Drain thoroughly and pat dry.
3. Whisk together the potato starch and 2 Tablespoons melted clarified butter until smooth. Gently toss the potato slices until lightly coated.
4. Pat the fish fillets completely dry with paper towels. Beginning at the narrow tail end of each fillet, overlap the potato slices by approximately one-third, working toward the thicker end until the entire surface resembles shimmering fish scales.
5. Cover the potatoes with a sheet of parchment paper and press firmly so the potato slices adhere evenly to the fish.
6. Refrigerate the fillets for 30 minutes, or place them in the freezer for 10 minutes, allowing the potato crust to set.
7. Remove the fillets from the refrigerator about 10 minutes before cooking.
8. Heat a nonstick skillet over medium-high heat. Place a parchment round in the bottom of the skillet and add the remaining 2 Tablespoons clarified butter.
9. Season the flesh side of the fillets lightly with fine sea salt.
10. Carefully place the fish potato-side down into the skillet. Press gently for the first minute to ensure even contact with the pan.
11. Reduce the heat to medium and continue cooking until the potato crust is deep golden brown and the fish is approximately 90% cooked.
12. Carefully turn each fillet using a flexible fish spatula and cook for 30 seconds to 1 minute longer, just until the fish is cooked through.
13. Transfer the fish to a warm plate while preparing the sauces.

Prepare the Orange Beurre Blanc

14. Heat the oil in a small saucepan over medium heat. Add the shallot and cook until softened.
15. Add the rosemary, peppercorns, orange zest, orange juice, and white wine. Simmer until the liquid has reduced to approximately 2 Tablespoons.
16. Strain the reduction into a clean saucepan set over very low heat.
17. Whisk in the cold butter, one piece at a time, until fully emulsified.
18. Stir in the crème fraîche and season with fine sea salt to taste.
19. Finish with a squeeze of the reserved fresh orange juice immediately before serving.

Prepare the Veal Jus

20. Reduce the veal stock until approximately 1 Cup (240 ml) remains.
21. In a separate saucepan, heat the oil and gently cook the shallots until translucent.
22. Add the white wine and reduce until nearly syrupy.
23. Stir in the reduced veal stock and simmer until the sauce lightly coats the back of a spoon.
24. Strain through a fine-mesh sieve and keep warm.

Assemble the Dish

25. Spoon a generous pool of Orange Beurre Blanc into the center of each warmed dinner plate.
26. Lightly blot the bottom of each fish fillet with a paper towel to remove any excess butter. Place the fish in the center of the beurre blanc with the potato scales facing upward and oriented toward the widest part of the plate so the crisp golden crust remains fully visible.
27. Dot the Veal Jus around the perimeter of the beurre blanc in varying sizes. Using the tip of a toothpick, gently drag through each dot toward the center of the plate to create elegant heart-shaped teardrops.
28. Garnish with a few sprigs of micro chervil, micro dill, or chive blossoms, if desired.
29. Serve immediately while the potato crust is crisp and both sauces are hot.

Cook’s Notes

• A sharp mandoline is essential for producing uniformly thin potato slices.
• Do not overcook the potatoes during blanching. They should be flexible enough to bend without breaking.
• Clarified butter promotes even browning because the milk solids have been removed.
• Cook the fish almost entirely on the potato side to develop the crisp crust while keeping the flesh moist and delicate.
• A flexible fish spatula makes turning the fillets much easier without disturbing the potato scales.
• If Ratte potatoes are unavailable, Yukon Gold potatoes are an excellent substitute.
• Unsalted veal stock provides better control over the seasoning of the finished jus.

Chef’s Tip: Assemble the potato-crusted fillets several hours in advance and refrigerate them uncovered. Allowing the potato surface to dry slightly produces an even crispier, beautifully browned crust when cooked.

Serving Suggestions

• Serve with buttered haricots verts, asparagus, or baby carrots.
• A silky celery root purée or pommes purée complements the crisp potato crust without competing with the sauces.
• Garnish with micro chervil, dill, or chive blossoms for a subtle touch of freshness.
• Serve on warm white porcelain plates to maintain the ideal serving temperature.

Beverage Suggestions

Wine

• Meursault
• Puligny-Montrachet
• Chablis Premier Cru
• White Burgundy
• Sancerre

Beer

• Belgian Blonde Ale
• Belgian Tripel

Non-Alcoholic

• Sparkling mineral water with a twist of fresh orange peel
• Citrus spritzer
• White grape juice topped with sparkling water

This timeless Paul Bocuse classic demonstrates how meticulous technique, thoughtful presentation, and exceptional ingredients can create one of the most elegant and enduring fish dishes in French cuisine. It is a recipe that rewards patience and precision with spectacular results worthy of the finest dining table.,m