Delicious Coquilles St. Jacques

There’s something undeniably comforting about Coquilles St. Jacques. I remember the first time I tasted it – a small, dimly lit bistro in Paris, the air thick with the aroma of butter and the murmur of contented diners. The server presented a perfectly browned scallop shell, its creamy contents bubbling gently. The first bite was pure heaven – the sweetness of the scallops, the richness of the sauce, the delicate crunch of the browned potatoes. It was a dish that spoke of simple elegance, of taking the time to savor each ingredient. That memory has stayed with me, and I’ve been chasing that perfect bite ever since.

Recipe Overview

• Prep Time: 30 minutes
• Cook Time: 22 minutes
• Total Time: 52 minutes
• Servings: 4-6
• Yield: 6 scallop shells
• Dietary Type: Pescatarian

Ingredients

For the Bouillon:

• 1 small onion, sliced
• 1 stalk celery, sliced
• 1 bay leaf
• 3 slices lemons
• 1 cup dry white wine
• 1 lb bay scallops, washed and dried

For the Sauce:

• 1/4 cup butter
• 1/4 cup shallots, finely chopped (or 1/4 cup finely chopped onion)
• 1/2 cup mixed mushrooms, sliced
• 1/4 cup flour
• 1 pinch pepper
• 1 cup light cream
• 1 cup Gruyere cheese, grated
• 2 tablespoons dry white wine
• 1 tablespoon parsley, chopped

For the Mashed Potatoes:

• 2 lbs white potatoes
• 1/4 cup butter
• 1/4 cup milk
• 1 egg yolk
• Salt and pepper to taste
• 1/4 cup Parmesan cheese, grated

Equipment Needed

• Medium saucepan
• Large pot
• Potato masher or ricer
• Pastry bag with a star tip
• 6 scallop shells (or oven-safe ramekins)
• Baking sheet

Instructions

1. Prepare the Bouillon: In a medium saucepan, combine the sliced onion, sliced celery, bay leaf, lemon slices, and 1/2 cup of the dry white wine. Bring the mixture to a boil over medium-high heat, then reduce the heat to low and simmer for 10 minutes.
2. Add the remaining 1/2 cup of white wine and the bay scallops to the simmering bouillon. Continue to simmer for another 5 minutes, or until the scallops are just cooked through.
3. Drain the Scallops: Carefully drain the scallops and bouillon. Reserve both the cooked scallops and 1/2 cup of the bouillon separately. Discard the solids from the bouillon.
4. Make the Sauce: In the same saucepan (or a clean saucepan), melt the butter over medium heat. Add the finely chopped shallots (or onion) and sliced mushrooms to the melted butter. Sauté until the shallots and mushrooms are tender, about 5-7 minutes.
5. Remove the saucepan from the heat. Stir in the flour and pepper until a smooth paste forms (a roux). Ensure there are no lumps.
6. Return the saucepan to medium heat. Gradually whisk in the light cream, stirring constantly to prevent lumps from forming. Bring the sauce just to a boil, stirring continuously.
7. Reduce the heat to low and simmer the sauce until it has thickened slightly, about 4-5 minutes, stirring frequently.
8. Remove the saucepan from the heat again. Add the grated Gruyere cheese and stir until the cheese is completely melted and the sauce is smooth and creamy.
9. Stir in the 2 tablespoons of dry white wine and the reserved 1/2 cup of prepared bouillon. Finally, stir in the chopped parsley.
10. Add the cooked scallops to the sauce and mix gently to combine.
11. Prepare the Mashed Potatoes: While the sauce is simmering, peel the potatoes and cut them into evenly sized pieces. Place the potatoes in a large pot, cover with cold water, and bring to a boil over high heat. Reduce the heat and simmer until the potatoes are tender and easily pierced with a fork, about 15-20 minutes.
12. Drain the potatoes well and return them to the pot. Mash the potatoes thoroughly using a potato masher or ricer until smooth.
13. Add the butter, milk, salt, and pepper to the mashed potatoes. Stir until everything is well combined and the mashed potatoes are creamy and smooth. Beat in the egg yolk.
14. Assemble the Coquilles St. Jacques: Divide the scallop mixture evenly among the 6 scallop shells (or oven-safe ramekins).
15. Transfer the mashed potatoes to a pastry bag fitted with a star tip. Pipe the mashed potatoes around the edges of each scallop shell, creating a decorative border.
16. Sprinkle the tops of the mashed potatoes with the grated Parmesan cheese.
17. Broil or Bake: Place the filled scallop shells on a baking sheet or cookie sheet.
18. Broil: Position the baking sheet about 4 inches from the broiler. Broil on low heat until the mashed potatoes are golden brown and the dish is heated through, about 2-3 minutes. Watch carefully to prevent burning.
19. Bake (Alternative): If you prefer, you can bake the scallop shells in a preheated oven at 400°F (200°C) for a few minutes to heat them through, then switch to broil to brown the tops. This is a good option if your ingredients have cooled down significantly during assembly.

Expert Tips & Tricks

• Don’t Overcook the Scallops: Scallops become tough and rubbery if overcooked. Simmer them in the bouillon just until they are opaque and firm to the touch.
• Make Ahead: You can prepare the scallop mixture and mashed potatoes ahead of time. Store them separately in the refrigerator and assemble the dish just before baking. This is a great time saver when entertaining.
• Bouillon Boost: Use fish stock in place of some of the white wine in the bouillon for a richer flavour.
• Creamy Sauce: For an extra luxurious sauce, use heavy cream instead of light cream.
• Cheese Variation: Substitute a blend of Gruyere and Emmental cheese for a more complex flavour.
• Prevent Burning: If the Parmesan cheese starts to brown too quickly under the broiler, loosely tent the scallop shells with aluminum foil.

Serving & Storage Suggestions

Serve the Coquilles St. Jacques immediately after broiling or baking, while they are hot and bubbly. Garnish with a sprig of fresh parsley or a sprinkle of paprika for added visual appeal. This dish pairs beautifully with a crisp white wine, such as a Sauvignon Blanc or a Chardonnay.

Storage: Leftover Coquilles St. Jacques can be stored in the refrigerator for up to 2 days. Make sure to cover them tightly to prevent them from drying out.

Reheating: Reheat in a preheated oven at 350°F (175°C) until heated through. You can also reheat them in a microwave, but the mashed potatoes may not be as crisp.

Nutritional Information

Nutrient	Amount per Serving	% Daily Value
Calories	650 kcal	33%
Total Fat	40g	62%
Saturated Fat	25g	125%
Cholesterol	200mg	67%
Sodium	900mg	38%
Total Carbohydrate	50g	17%
Dietary Fiber	4g	16%
Sugars	3g	–
Protein	30g	60%

Note: Nutritional information is an estimate and may vary based on specific ingredients and portion sizes.

Variations & Substitutions

• Gluten-Free: To make this dish gluten-free, substitute the all-purpose flour with a gluten-free all-purpose flour blend. Ensure the bouillon is also gluten free.
• Dairy-Free: Use a dairy-free butter substitute and a dairy-free cream alternative, such as oat cream or cashew cream. Use a dairy-free Parmesan cheese alternative to sprinkle over the dish.
• Vegetarian: While traditionally this dish features scallops, you can substitute the scallops with pan-fried oyster mushrooms for a vegetarian option with a similar texture.
• Seafood Medley: Add other seafood such as shrimp or lobster to the scallop mixture for a more decadent dish.
• Spicy Kick: Add a pinch of cayenne pepper to the sauce for a touch of heat.
• Herbaceous Twist: Incorporate fresh herbs such as thyme or chives into the sauce for added flavour.

FAQs (Frequently Asked Questions)

Q: Can I use frozen scallops for this recipe?
A: Yes, you can use frozen scallops. Make sure to thaw them completely before cooking and pat them dry to remove any excess moisture.

Q: Can I make this dish ahead of time and freeze it?
A: While you can prepare the scallop mixture and mashed potatoes ahead of time and store them separately in the refrigerator, freezing the assembled dish is not recommended as the texture of the potatoes may change upon thawing.

Q: What can I use if I don’t have scallop shells?
A: If you don’t have scallop shells, you can use oven-safe ramekins or small gratin dishes as a substitute.

Q: How do I prevent the mashed potatoes from drying out while broiling?
A: Piping the mashed potatoes with a star tip helps to create more surface area that will brown nicely, but be mindful to not broil for too long. If you are worried about them drying, brush them with a bit of melted butter before broiling.

Q: Can I use a different type of cheese in the sauce?
A: Yes, you can use other types of cheese such as Emmental, Comté, or even a sharp cheddar for a different flavour profile.

Final Thoughts

Coquilles St. Jacques is more than just a dish; it’s an experience. It’s the warmth of the creamy sauce, the delicate sweetness of the scallops, and the satisfaction of a beautifully prepared meal. Whether you’re looking to impress guests or simply treat yourself to something special, I encourage you to try this recipe. Don’t be intimidated by the steps – each one is simple and rewarding. Gather your ingredients, put on some music, and let the aromas of butter and wine fill your kitchen. I promise, the effort is well worth the deliciousness that awaits. Enjoy, and please share your culinary creations and any feedback you might have!