Seafood Gratin Creamy Bake

Category: Cozy, Hearty Recipes That Feel Like Home

This classic French-inspired seafood gratin merges plump shrimp and sweet scallops in a velvety cream sauce, enhanced by the subtle sweetness of white grape juice. Sautéed onions and garlic build a savory base, while a bubbling layer of golden cheese adds irresistible richness. Carefully baked until perfectly set and golden brown, this dish balances tender seafood with a rich, creamy topping. Serve slightly cooled, letting flavors mingle for an indulgent main course that brings refined French comfort to your table. Versatile for any occasion, it adapts well to alternative seafood or vegetable additions.

A woman with a smile on her face.
Created By Melanie Carter
Updated on Sat, 23 Aug 2025 05:39:31 GMT
A bowl of shrimp and cheese. Pin
A bowl of shrimp and cheese. | mellierecipes.com

Seafood gratin is my answer when I want to serve something elegant and comforting that never fails to impress. Brimming with juicy shrimp and scallops nestled in a creamy sauce and crowned with bubbling golden cheese this dish is pure French-inspired comfort food but quick enough for a weeknight.

I first made this for a last-minute dinner party and was amazed how it disappeared from the table faster than anything else I served. Even my pickiest eater came back for seconds.

Ingredients

  • Shrimp: peeled and deveined brings sweetness and a tender bite look for seafood that smells fresh and is firm to the touch
  • Scallops: fresh or well-thawed if frozen these add delicate flavor and richness select scallops that are dry-packed for best texture
  • Butter: gives the sauce its silky base use a good quality unsalted butter for a clean creamy flavor
  • Onion: chopped adds subtle sweetness and depth of flavor choose onions that are firm and have shiny skins
  • Garlic: minced brings warmth and complexity pick plump cloves for best taste
  • Heavy cream: creates a lush sauce for real French flair find a cream with a high fat content for richness
  • White grape juice: offers a gentle sweetness balancing the flavors try to use pure juice without added sugar
  • Grated cheese for topping: any good melting cheese works I love Gruyere for nutty notes but use your favorite try to grate it yourself for best melting results
  • Salt: to taste heightens every flavor fine sea salt gives even seasoning
  • Black pepper: freshly ground adds a mild kick grind just before cooking for the brightest flavor

Step-by-Step Instructions

Prepare the Seafood:
Pat the shrimp and scallops dry after rinsing to ensure they sear not steam in the pan then set aside
Sauté the Aromatics:
In a large skillet melt the butter over medium heat add chopped onion and garlic cook gently for about three to four minutes until they are soft and translucent the onions should be fragrant but not browned
Cook the Seafood:
Add the shrimp and scallops to the pan spread them out in a single layer cook for about three minutes turning once shrimp should be just pink and scallops opaque to avoid overcooking which can make seafood tough
Build the Sauce:
Pour in the white grape juice let it simmer for two minutes to concentrate the flavors then add heavy cream salt and black pepper stir everything together and let it heat through until slightly thickened do not let the sauce boil hard or the cream can split
Assemble and Top:
Spoon the creamy seafood mixture into a baking dish as evenly as possible sprinkle the grated cheese thickly over the top for a golden crust
Bake to Perfection:
Bake in a preheated oven at 180 Celsius or 350 Fahrenheit for about fifteen minutes until the cheese bubbles and turns deeply golden
Rest and Serve:
Remove the gratin and let it sit for a few minutes before serving this helps the flavors settle and makes scooping easier
A bowl of shrimp and cheese. Pin
A bowl of shrimp and cheese. | mellierecipes.com

I have a fondness for how the cheese on top melds into the cream beneath It reminds me of cozy winter dinners by the fireplace in my childhood kitchen when my mom would experiment with borrowed French recipes

Storage tips

Seafood gratin keeps well in the refrigerator for up to two days Make sure to cool it fully before covering tightly and storing Reheat gently in the oven at a low temperature until warmed through to keep the sauce smooth

Ingredient substitutions

If shrimp or scallops are unavailable try using firm white fish chunks such as cod or haddock Mussels can also make an exciting addition For the creamy component coconut cream can be used for a dairy-free twist

Serving suggestions

This gratin pairs beautifully with crusty bread that can soak up extra sauce A crisp green salad with lemon vinaigrette balances the richness or serve over steamed rice for a heartier meal

A bowl of shrimp and cheese. Pin
A bowl of shrimp and cheese. | mellierecipes.com

Cultural historical context

Seafood gratins come from coastal French regions where fresh catch meets rustic home cooking French cooks are masters at transforming humble ingredients into showstopping comfort food and this recipe channels those traditions

Recipe FAQs

→ Which seafood can I use as substitutes?

Besides shrimp and scallops, try firm white fish or crab meat for great results. Adjust cooking times as needed to avoid overcooking.

→ Can I prepare the gratin ahead?

Yes, assemble the dish up to the baking stage and refrigerate. Bake just before serving for the best flavor and texture.

→ What cheese works best for topping?

A blend of Gruyère and Parmesan gives great flavor, but you can use your favorite melting cheese such as mozzarella or cheddar.

→ Is heavy cream essential?

Heavy cream creates a rich sauce, but half-and-half can be used for a lighter version. Avoid low-fat cream to maintain texture.

→ How do I prevent the seafood from overcooking?

Sauté shrimp and scallops just until opaque. They will finish cooking during baking, remaining tender and juicy.

Seafood Gratin Creamy Bake

Shrimp and scallops in a luscious cream sauce, baked with cheese for a golden, flavorful French-inspired main course.

Prep Time
10 minutes
Cooking Duration
20 minutes
Overall Cooking Time
30 minutes
Created By: Melanie Carter

Recipe Category: Comfort Food Classics

Skill Level: Moderate

Cuisine Style: French

Result Amount: 4 Portions

Diet Preferences: Gluten-Free Option

What You’ll Need to Make This

→ Seafood

01 200 g shrimp, peeled and deveined
02 200 g scallops, fresh or thawed if frozen

→ Sauce and Aromatics

03 2 tablespoons butter
04 1 medium onion, chopped
05 2 cloves garlic, minced
06 200 ml heavy cream
07 50 ml white grape juice
08 1/2 teaspoon salt
09 1/2 teaspoon black pepper

→ Topping

10 50 g grated cheese

How to Prepare

Step 01

Thaw shrimp and scallops fully if frozen, rinse under cold water, and pat dry.

Step 02

Heat butter in a large skillet over medium heat. Add chopped onion and minced garlic, sauté for 3–4 minutes until translucent.

Step 03

Add shrimp and scallops to the skillet, cooking for approximately 3 minutes until shrimp turns pink and scallops become opaque.

Step 04

Pour white grape juice into the pan, simmer for 2 minutes. Stir in heavy cream, salt, and black pepper. Mix thoroughly to combine.

Step 05

Transfer seafood mixture into a baking dish. Evenly sprinkle grated cheese over the top.

Step 06

Preheat oven to 180°C. Bake for 15 minutes, or until the cheese is bubbly and golden brown.

Step 07

Remove from oven and allow to cool slightly before serving.

Extra Tips

  1. This preparation can be adapted using various seafood or replaced with vegetables for a vegetarian option.

Tools Required

  • large skillet
  • baking dish
  • measuring cups
  • measuring spoons
  • knife
  • cutting board

Allergen Info

Review ingredients carefully for allergens. Reach out to your healthcare provider if you’ve got specific concerns.
  • Contains shellfish, milk, and cheese

Nutritional Information (Per Serving)

Remember, this info is purely for reference and isn’t meant to replace dietary guidance.
  • Caloric Value: 350
  • Fat Content: ~
  • Carbohydrate Content: ~
  • Protein Content: ~