Irresistible Shrimp Gratin Recipe You Need To Try

I’m sharing my Shrimp Gratin, a creamy, cheesy au gratin of baked shrimp that hides one unexpected ingredient you’ll want to know about.

I can’t keep this Irresistible Shrimp Gratin to myself. There’s something dangerous about perfectly baked shrimp bathed in a silky, cheesy au gratin sauce that makes guests go quiet then fight over the last bite.

I use Gruyere for its nutty pull and the dish somehow becomes that showstopper you pretend was effortless. It sits squarely between weeknight flex and dinner party flex, and yes its an entry in my mental list of Shrimp Gratin Recipes that always gets shared.

If you like Cheesy Shrimp you’ll want to save this one for the next gathering.

Ingredients

• Shrimp add lean protein and briny flavor, cooks fast so dont overdo it.
• Gruyere brings nutty, melty richness and lots of savory fat and calcium.
• Parmesan packs umami, salty punch its great for a crisp gratin crust.
• Panko gives crunch and light texture, little oil absorption for a crisp top.
• Garlic and onion add savory depth, aromatic base with small amounts of fiber.
• Butter adds richness and helps brown topping, mostly saturated fat so use wisely.
• Milk and cream make a silky sauce, gives calories and calcium but very creamy.
• Dijon adds tangy zip and helps emulsify sauce, tiny bit goes long way.

Ingredient Quantities

• 1 lb (450 g) large shrimp, peeled and deveined
• 3 tablespoons unsalted butter
• 1 tablespoon olive oil
• 1 small yellow onion (about 150 g)
• 2 cloves garlic, minced
• 2 tablespoons all purpose flour
• 1 cup whole milk (240 ml)
• 1/2 cup heavy cream (120 ml)
• 1/4 cup dry white wine (60 ml) optional
• 1 cup grated Gruyere or Swiss cheese (about 100 g)
• 1/2 cup grated Parmesan cheese (about 50 g)
• 1/2 cup panko breadcrumbs (about 50 g)
• 1 tablespoon Dijon mustard
• 1 teaspoon lemon juice
• 1/2 teaspoon smoked paprika or sweet paprika
• 1/4 teaspoon cayenne pepper optional
• Salt and freshly ground black pepper to taste
• 2 tablespoons chopped fresh parsley

How to Make this

1. Preheat oven to 400°F (200°C). Pat 1 lb shrimp dry and season lightly with salt, pepper, 1/2 tsp smoked paprika (or sweet paprika) and a pinch of cayenne if you like heat. Don’t over-salt since cheeses add salt too.

2. In a skillet over medium heat melt 2 tbsp unsalted butter with 1 tbsp olive oil. Add 1 small chopped yellow onion and cook about 4-5 minutes until soft, then add 2 minced garlic cloves and cook 30 seconds until fragrant.

3. Push the onion mixture to the side, add the last 1 tbsp butter, then sprinkle in 2 tbsp all purpose flour. Cook, stirring, 1-2 minutes to cook the raw flour taste but don’t let it brown too much.

4. If using, deglaze with 1/4 cup dry white wine and let it reduce a minute. Then whisk in 1 cup whole milk and 1/2 cup heavy cream (warm milk helps it come together). Simmer gently until the sauce thickens, about 3-5 minutes.

5. Stir in 1 tbsp Dijon mustard, 1 tsp lemon juice, the remaining 1/2 tsp smoked paprika if using, and cayenne to taste. Season with salt and freshly ground black pepper but go easy, taste first.

6. Remove from heat and stir in 1 cup grated Gruyere (or Swiss) and 1/2 cup grated Parmesan until melted and smooth. If sauce is too thick add a splash more milk, too thin simmer a bit longer.

7. Fold the seasoned shrimp into the cheesy sauce so they’re coated. If shrimp are raw they will finish cooking in the oven, if pre-cooked just warm through. Transfer everything to a shallow gratin or baking dish, spread evenly.

8. Mix 1/2 cup panko breadcrumbs with a little melted butter and a tablespoon or two of grated Parmesan, sprinkle over the top for crunch. You can also add a touch more grated Gruyere on top for extra browning.

9. Bake 10-12 minutes until bubbly and shrimp are just cooked through, then broil 1-2 minutes if you want a golden crust, watch it closely. Let rest 3-5 minutes, sprinkle 2 tbsp chopped fresh parsley, serve with crusty bread or rice. Trust me, don’t overcook the shrimp it ruins the whole thing.

Equipment Needed

1. Oven (preheat to 400°F / 200°C)
2. Shallow gratin or baking dish, oven safe, about 9 by 9 inch
3. Large skillet, nonstick or stainless steel
4. Mixing bowl or two, one big or a few small ones
5. Whisk for the roux and sauce
6. Rubber spatula or wooden spoon to stir and fold
7. Box grater or microplane for the Gruyere and Parmesan
8. Measuring cups and spoons plus a kitchen scale if you got one
9. Cutting board and a good chef’s knife to chop the onion and parsley
10. Oven mitts and tongs or a slotted spoon to transfer the shrimp

FAQ

Irresistible Shrimp Gratin Recipe You Need To Try Substitutions and Variations

• Shrimp: use scallops (same rich taste, sear 1 to 2 minutes per side), or firm white fish like cod or halibut cut into bite sized chunks (watch cook time so it doesn’t fall apart), or lump crab meat for a sweeter, briny gratin.
• Gruyere or Swiss cheese: swap with aged cheddar for nuttier flavor, or fontina for great meltability, or a mix of mozzarella + a little Parmesan if you want milder, stretchier cheese.
• Milk + heavy cream: replace both with 1 1/2 cups half and half; for dairy free try full fat canned coconut milk (flavor will change), or thin plain Greek yogurt with a splash of milk to reach similar creaminess.
• Panko breadcrumbs: use crushed saltine or butter crackers for a crunchy top, crushed cornflakes or regular breadcrumbs mixed with 1 tablespoon melted butter, or almond meal for a low carb crisp.

Pro Tips

1. Quick brine for firmer shrimp. Soak shrimp 10 to 15 minutes in 1 cup water with 1 teaspoon salt and 1 teaspoon sugar, rinse and pat very dry. It gives better texture and helps them not go rubbery, just dont skip drying or the gratin gets watery.

2. Keep the sauce silky. Warm the milk and cream before adding, cook the flour a minute so it loses that raw taste, and if lumps form whisk hard or blitz briefly with an immersion blender. If it gets too thick add a splash of warm milk, too thin simmer a bit longer.

3. Freshly grate your cheeses and taste before salting. Pre shredded cheese often makes the sauce grainy and Parmesan is salty so go easy on extra salt. A little lemon zest or a squeeze of lemon at the end brightens everything up.

4. Make the topping pop. Toast the panko in a skillet with a bit of butter until golden, stir in some grated Parmesan and a pinch of lemon zest then sprinkle on top. Bake until the shrimp are just opaque and let the dish rest a few minutes, they will keep cooking in the hot sauce so you wont overcook them.