Equipment
Ingredients
Seafood & Aromatics
- 600 g sea scallops, abductor muscle removed
- 150 ml dry white wine
- 100 ml water
- 50 g shallots, finely minced
- 1 bouquet garni
- 200 g white mushrooms, thinly sliced
Veloute Cream Sauce
- 45 g unsalted butter
- 30 g all-purpose flour
- 100 ml heavy cream
- 2 g fine sea salt
- 1 g white pepper
Gratin Topping & Garnish
- 60 g gruyere cheese, freshly grated
- 30 g panko breadcrumbs
- 15 g unsalted butter, melted
- 5 g fresh parsley, finely chopped
Nutrition (per serving)
Nutrition is estimated per serving. Nutrients without complete source data are omitted.
Full nutrition
- Calories
- 454 kcal
- Protein
- 11 g
- Carbohydrates
- 25 g
- Fat
- 33 g
- Fiber
- 4 g
- Sugar
- 8 g
- Sodium
- 434 mg
- Saturated Fat
- 11 g
- Trans Fat
- 0 g
- Monounsaturated Fat
- 3 g
- Polyunsaturated Fat
- 1 g
- Cholesterol
- 32 mg
- Potassium
- 718 mg
- Calcium
- 275 mg
- Iron
- 7.6 mg
- Magnesium
- 66 mg
- Phosphorus
- 286 mg
- Zinc
- 2.3 mg
- Vitamin A
- 385 mcg
- Vitamin C
- 30 mg
- Vitamin D
- 2.5 mcg
- Vitamin E
- 0.6 mg
- Vitamin K
- 27 mcg
- Vitamin B6
- 0.3 mg
- Vitamin B12
- 0.0 mcg
- Thiamin
- 0.17 mg
- Riboflavin
- 0.16 mg
- Niacin
- 2.3 mg
- Folate
- 58 mcg
- Water
- 225 g
Sources: Aggregated Public Data, USDA FoodData Central
Method
Preheat the oven broiler to 220°C or 430°F.
Remove the tough, crescent-shaped abductor muscle from the side of each sea scallop. Keep the raw seafood completely separate from ready-to-eat ingredients to prevent cross-contamination, and wash your hands thoroughly after handling. Pat the scallops completely dry with paper towels.
In a saute pan, combine the dry white wine, water, minced shallots, and bouquet garni. Bring the mixture to a gentle simmer over medium heat.
Add the sea scallops and sliced white mushrooms to the simmering liquid. Poach gently for 2 to 3 minutes until an internal temperature of 63°C or 145°F is reached for seafood safety. Ensure you do not overcook them; they will continue cooking under the broiler.
Using a slotted spoon, carefully transfer the poached scallops and mushrooms to a clean plate. Strain the cooking liquid through a fine mesh sieve into a measuring cup, discarding the solids, and reserve exactly 250ml of the aromatic broth.
In a separate saucepan, melt 45g of unsalted butter over medium-low heat. Whisk in the all-purpose flour and cook for 2 minutes to create a blonde roux without browning.
Gradually whisk the reserved 250ml of poaching liquid into the roux to prevent lumps. Bring the sauce to a low simmer and cook for 5 minutes, stirring frequently.
Stir the heavy cream into the sauce and allow it to gently simmer for 2 additional minutes to meld the flavors. Remove from the heat and season with the fine sea salt and white pepper.
In a mixing bowl, thoroughly combine the grated gruyere cheese, panko breadcrumbs, and 15g of melted butter to form the gratin topping.
Distribute the poached scallops and mushrooms evenly among four gratin dishes or cleaned, oven-safe natural scallop shells.
Spoon the warm cream sauce generously over the seafood in each dish, ensuring all the scallops and mushrooms are fully enrobed to protect them from the direct heat of the broiler.
Sprinkle the prepared gruyere and breadcrumb topping in an even layer across the surface of the sauce in each dish.
Place the assembled dishes on a sturdy baking sheet. Transfer to the oven and broil at 220°C or 430°F for 3 to 5 minutes.
Remove the baking sheet from the oven and allow the gratins to rest for 5 minutes. This step prevents the intensely hot sauce from burning the palate and allows the structure to stabilize slightly.
Garnish each portion lightly with finely chopped fresh parsley just before bringing to the table.
Chef's Notes
- Always dry your scallops completely with paper towels before starting. Excess moisture will water down the delicate poaching liquid and subsequent cream sauce.
- Removing the small abductor muscle on the side of the scallop is non-negotiable for fine dining. It cooks at a different rate than the rest of the scallop and becomes incredibly fibrous.
- For the most authentic flavor profile, select a wine you would actually enjoy drinking. A crisp, unoaked Chablis provides the perfect acidity to balance the rich cream and cheese.
- If your finished sauce feels too thick before assembly, whisk in a splash of warm milk or additional cream off the heat to smooth it out to the perfect nappe consistency.
Storage
Refrigerator: 2 days — Store in an airtight container. Seafood degrades quickly, so consume as soon as possible.
Reheating: Reheat very gently in a 150 C or 300 F oven until just warmed through. Do not microwave, as it will overcook the scallops.
Troubleshooting
Scallops are tough and rubbery
Cause: Overcooking during the initial poaching phase or leaving them under the broiler too long
Fix: Cannot be fixed
Prevention: Poach scallops only until barely opaque. Remember they will undergo a second cooking phase under the intense heat of the broiler.
Sauce is lumpy
Cause: Liquid was added too quickly to the roux, or whisking was insufficient
Fix: Pass the finished sauce through a fine mesh sieve before adding the heavy cream.
Prevention: Add the warm poaching liquid to the roux in a slow, steady stream while whisking vigorously without stopping.
Cultural Context
Coquilles Saint-Jacques translates directly to Shells of Saint James, named after the patron saint of pilgrims who historically wore scallop shells as a badge of honor on the Way of St. James to Santiago de Compostela. Traditionally served inside the beautiful, fan-shaped scallop shell itself, this luxurious gratin became a global hallmark of classical French haute cuisine in the mid-20th century. It perfectly demonstrates the French culinary philosophy of elevating fresh seafood through meticulous sauce technique.
