
This garlic shrimp gratin blends French elegance with comforting indulgence, creating a dish that's both sophisticated and deeply satisfying. The combination of tender shrimp enrobed in a garlic-infused cream sauce, topped with a golden, crispy crust, makes this dish truly special. It's the kind of recipe that feels fancy but is actually quite simple to master.
I discovered this recipe during my exploration of French gratins and have since adapted it countless times. The key breakthrough was realizing that pre-cooking the shrimp briefly ensures they stay tender in the final dish.
Essential Ingredients Guide
- Shrimp: Choose medium to large size (16-20 count), fresh or properly thawed.
- Garlic: Fresh cloves only; pre-minced won't provide the same depth.
- Heavy Cream: Full-fat is essential for the right consistency.
- Mozzarella: Fresh, whole-milk mozzarella melts beautifully.
- Parmesan: Freshly grated provides better texture and flavor.
- Panko Breadcrumbs: These create a lighter, crispier top than regular breadcrumbs.
- Fresh Parsley: Adds brightness to the rich dish.
Detailed Cooking Instructions
- Step 1: Preparing Your Base
- Heat oven to exactly 375°F (190°C). Butter your baking dish generously. Mince garlic while butter melts in a skillet. Keep ingredients at room temperature for even cooking.
- Step 2: Perfecting the Shrimp
- Pat shrimp completely dry before cooking. Heat butter until foamy but not brown. Add garlic and cook just until fragrant. Arrange shrimp in a single layer. Cook just until they start to turn pink. Remove immediately to prevent overcooking.
- Step 3: Creating the Cream Sauce
- Warm cream slightly before adding cheese. Stir in cheeses gradually to prevent clumping. Season carefully - remember, Parmesan adds saltiness. The sauce should coat the back of a spoon.
- Step 4: Assembly and Topping
- Layer shrimp evenly in prepared dish. Pour sauce to just cover the shrimp. Mix panko with remaining Parmesan. Sprinkle topping evenly. Drizzle with melted butter.

The sauce is my favorite part of this dish. I've learned that taking time to gradually incorporate the cheese results in a silky-smooth texture that perfectly coats each shrimp.
Temperature and Timing
Getting the timing right is crucial for perfect shrimp gratin. I always watch for the edges to bubble while maintaining a creamy center. If you're planning to broil for extra crispiness, do it just before serving to ensure the topping stays crunchy.
Make-Ahead Options
You can prepare components in advance: sauté the shrimp and make the cream sauce separately, then assemble and add the topping just before baking. This makes it perfect for entertaining or busy weeknights.
Serving Suggestions
I love serving this with crusty bread to soak up the rich sauce. A simple green salad dressed with lemon vinaigrette provides a perfect contrast to the creamy gratin. For special occasions, I might add roasted asparagus or haricots verts.
Creative Variations
While the classic version is wonderful, I sometimes add sautéed mushrooms or spinach for extra depth. During summer, I might include fresh herbs from my garden - tarragon is particularly lovely with shrimp.

This gratin has become my go-to dish for elegant dinners that don't require hours in the kitchen. The way the crispy topping gives way to succulent shrimp and creamy sauce creates a memorable dish that feels special every time. Whether served for a romantic dinner or a family gathering, it never fails to impress while being surprisingly simple to prepare.
Frequently Asked Questions
- → Can I use frozen shrimp?
- Yes, just thaw them completely and pat dry before cooking. Make sure to remove the tails for easier eating.
- → How do I know when the gratin is done?
- The top should be golden brown and bubbly, and you'll see the sauce simmering around the edges.
- → Can I make this ahead of time?
- You can prepare the shrimp and sauce up to a day ahead, then add the topping and bake just before serving.
- → What can I serve with this?
- Crusty bread, rice, or pasta work great. Add a green salad or steamed vegetables on the side.
- → Can I use different cheese?
- Yes, try Gruyere or fontina instead of mozzarella. Just make sure to use a cheese that melts well.