Coquilles Saint-Jacques (French Scallop Gratin with Gruyere)
Quick answer
Coquilles Saint-Jacques is a French scallop gratin that begins with sea scallops seared in foaming butter, then arranged in ramekins or scallop shells under a sauce built...
What makes this special
- White wine reduces by half before cream and lemon build the sauce that covers seared scallops under Gruyere gratin.
- Thoroughly drying scallops before a hot quick sear achieves caramelized crust with soft interior
- Reducing white wine by half concentrates acidity and gives depth to the cream sauce
Key ingredients
Core cooking flow
- 1 Press the 260 g sea scallops dry with paper towels until the surface feels dry, not damp.
- 2 Heat the pan well over high heat, then melt 1 tablespoon of butter.
- 3 Lower the same pan to medium heat and cook the 40 g shallot in the remaining...
Coquilles Saint-Jacques is a French scallop gratin that begins with sea scallops seared in foaming butter, then arranged in ramekins or scallop shells under a sauce built from shallot, white wine reduced by half, heavy cream, and fresh lemon juice, topped with grated Gruyere cheese and fine breadcrumbs. Patting the scallops completely dry with paper towels before they hit the pan is the step that determines whether a proper caramelized crust forms or the surface simply steams. Reducing the white wine concentrates its acidity and adds structure to the sauce, and the cream and lemon juice together create something light and cohesive rather than heavy. Six to eight minutes under the broiler at 220 degrees Celsius turns the cheese-and-breadcrumb topping into a golden, crackling crust. The completed dish delivers three distinct textures in each bite -- a crunchy top layer, a rich and silky sauce underneath, and tender, springy scallop flesh at the center. Serving directly in individual ramekins or in scallop shells reproduces the classic restaurant presentation, and a slice of baguette alongside makes it easy to collect every last drop of the sauce.
Instructions
Read the steps as a cooking flow: prep, heat, seasoning, doneness control, and finish.
- 1Season
Press the 260 g sea scallops dry with paper towels until the surface feels dry, not damp.
Season lightly with salt and pepper just before cooking so moisture does not draw back out too early.
- 2Control
Heat the pan well over high heat, then melt 1 tablespoon of butter.
When the foam settles, add the scallops and sear for only 40 to 60 seconds per side, then remove them at once.
- 3Control
Lower the same pan to medium heat and cook the 40 g shallot in the remaining butter for 1 to 2 minutes, until translucent.
Use the sweet browned butter flavor, but avoid scraping up any burnt bits.
- 4Control
Pour in 80 ml white wine and reduce it over medium-high heat until about half remains.
The alcohol smell should fade, and the pan should hold a thin, glossy layer of concentrated sauce.
- 5Control
Add 120 ml heavy cream and 1 teaspoon lemon juice, then lower the heat to gentle heat and simmer for 2 to 3 minutes.
Stop when the sauce lightly coats the back of a spoon.
- 6Finish
Arrange the scallops in ramekins, spoon the sauce over them, then top with 35 g Gruyere and 2 tablespoons breadcrumbs.
Broil at 220C for 6 to 8 minutes, until golden and bubbling, and serve immediately.
After the steps
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