Classic Coquilles Saint-Jacques with White Wine Cream Sauce

Why You’ll Love This Recipe

• Restaurant-level French classic made approachable for home cooks.
• Buttery, seared scallops under a silky white wine–cream sauce with a golden Gruyère crust.
• Perfect for dinner parties: assemble ahead and bake before serving.
• Elegant presentation in scallop shells or ramekins with minimal fuss.

Grocery List

• Produce: Cremini mushrooms, shallots, garlic, lemon, fresh thyme, fresh parsley
• Dairy: Unsalted butter, heavy cream, Gruyère, Parmesan
• Pantry: Olive oil, kosher salt, pepper, Dijon mustard, fresh breadcrumbs
• Seafood: 1 lb dry sea scallops
• Beverages/Broth: Dry white wine, seafood stock or clam juice

Full Ingredients

For the Scallops

• 1 lb dry sea scallops (about 16–20), side muscles removed, patted very dry
• 1 tbsp olive oil
• 1/2 tsp kosher salt
• 1/4 tsp white or black pepper

For the Mushrooms & Creamy White Wine Sauce

• 2 tbsp unsalted butter
• 8 oz cremini mushrooms, thinly sliced
• 2 shallots, minced (about 1/3 cup)
• 1 small garlic clove, minced
• 1/2 cup dry white wine (Muscadet, Sancerre, or dry Chardonnay)
• 1/2 cup seafood stock or clam juice
• 3/4 cup heavy cream
• 1/2 tsp Dijon mustard
• 1 tsp fresh thyme leaves (or 1/2 tsp dried thyme)
• 1 tbsp fresh lemon juice
• Fine salt and pepper to taste
• 1 tbsp cold unsalted butter (to finish the sauce)

For the Gratin Topping & Assembly

• 1/2 cup finely grated Gruyère (or Comté)
• 2 tbsp finely grated Parmesan
• 1/3 cup fresh breadcrumbs
• 1 tbsp unsalted butter, melted
• 1 tsp lemon zest, for garnish
• 2 tbsp chopped fresh parsley, for garnish
• Lemon wedges, for serving
• 4 oven-safe scallop shells or shallow 6-oz ramekins, buttered

Step-by-Step Instructions

Step 1: Prep and preheat

Position a rack in the center of the oven and another about 6 inches below the broiler element. Heat the oven to 425°F. Lightly butter 4 oven-safe scallop shells or 6-oz ramekins and set them on a rimmed sheet pan for easy transfer. Pat the scallops very dry with paper towels, remove any side muscles, and season both sides with 1/2 tsp kosher salt and 1/4 tsp pepper. Halve very large scallops horizontally for even cooking and better layering.

Step 2: Sear the scallops

Heat a 12-inch stainless steel or cast-iron skillet over medium-high until hot. Add 1 tbsp olive oil. When shimmering, add scallops in a single layer without crowding. Sear 60–90 seconds until a deep golden crust forms; flip and sear 45–60 seconds more. The centers should still look slightly translucent. Transfer to a plate and tent loosely; they will finish in the oven.

Step 3: Sauté mushrooms and aromatics

Reduce heat to medium. Add 2 tbsp butter to the skillet. Stir in the sliced mushrooms and cook, undisturbed for 2 minutes, then stir occasionally until browned and their liquid evaporates, 5–6 minutes total. Add the shallots and a pinch of salt; cook 2 minutes until softened. Stir in the garlic and cook 30 seconds until fragrant.

Step 4: Deglaze with wine and reduce

Pour in 1/2 cup dry white wine and scrape up any browned bits from the pan. Boil briskly until the wine reduces to a syrupy glaze, about 2–3 minutes. Add 1/2 cup seafood stock and simmer 2–3 minutes more until reduced by about half.

Step 5: Finish the creamy white wine sauce

Stir in 3/4 cup heavy cream, 1/2 tsp Dijon, and 1 tsp fresh thyme. Simmer gently, stirring, until the sauce thickens enough to coat the back of a spoon (nappe), 2–4 minutes. Off heat, add 1 tbsp cold butter and swirl until glossy. Stir in 1 tbsp lemon juice. Taste and season with salt and pepper as needed. The sauce should be rich, lightly tangy, and well seasoned.

Step 6: Assemble the coquilles

Divide the mushroom mixture among the prepared shells or ramekins. Nestle the seared scallops on top, then spoon the sauce evenly over them. In a small bowl, combine 1/3 cup breadcrumbs with 1 tbsp melted butter. Mix together the Gruyère and Parmesan. Top each portion with cheese, then sprinkle with buttery breadcrumbs.

Step 7: Bake, broil, and serve

Bake at 425°F for 8–10 minutes, until the sauce is bubbling at the edges. Switch to broil and brown the tops 1–2 minutes, watching closely. Let rest 2 minutes. Garnish with parsley and lemon zest, and serve immediately with lemon wedges and crusty bread.

Pro Tips

• Use dry-packed scallops; wet-treated scallops will weep and won’t sear properly.
• Get the pan hot and do not move the scallops while searing to build a deep crust.
• Reduce the wine until syrupy to avoid a thin or boozy sauce.
• Target nappe thickness: the sauce should coat a spoon and hold a clean line when you swipe a finger through it.
• Gruyère (or Comté) melts beautifully; a little Parmesan adds nutty sharpness and helps browning.

Variations

• Saffron-Leek: Swap mushrooms for 1 cup thinly sliced leeks; bloom a pinch of saffron in the warm cream before adding.
• Vermouth-Tarragon: Replace wine with dry vermouth and finish with 1 tsp chopped tarragon instead of thyme.
• Smoky Bacon Crumb: Cook 2 oz diced pancetta until crisp; fold into the buttered breadcrumbs for a smoky, savory top.

Storage & Make-Ahead

Best served immediately after broiling. If needed, you can assemble up to Step 6 (with just-under-seared scallops), cover, and refrigerate for up to 4 hours; bake an extra 2–3 minutes before broiling. Leftovers keep 1 day in the refrigerator; reheat covered at 325°F for 10–12 minutes until warmed through (avoid microwaving, which can toughen scallops). Freezing is not recommended due to the cream sauce.

Nutrition (per serving)

Approximately 480 calories; 34 g fat; 8 g carbohydrates; 28 g protein; 780 mg sodium. Values are estimates and will vary with brands and exact portions.