Garlic Shrimp Gratin
Raw shrimp, a shallow dish and eighteen minutes — the whole recipe is a timing problem.
Total: 35 minYield: 4 servingsMethod: Baking
In this recipe
Why the shrimp go in raw
Shrimp cook in about three minutes and turn rubbery shortly after. A gratin topping needs fifteen to eighteen minutes in the oven to brown. Those two facts are the entire challenge of this dish.
The resolution is to put the shrimp in raw, in a single layer, in a shallow dish. Spread thin and surrounded by cream, they come up to temperature slowly and finish just as the topping colors. Cooked beforehand, they get a second cooking and the texture is gone.
Choosing the shrimp
This dish has few components, so the shrimp themselves carry it.
- Size
- Large, around 26 to 30 per pound. Smaller shrimp are overcooked long before the topping browns; jumbo ones may still be translucent when it does.
- Raw, not pre-cooked
- Pre-cooked shrimp get a second cooking here and turn rubbery. Raw shrimp are not a preference in this recipe, they are a requirement.
- Frozen is fine
- Often better quality than the thawed shrimp at a counter. Thaw fully and dry hard — they hold more water than you expect.
Cues to watch
- Dry the shrimpThoroughly, with paper towel. Any water on them ends up in the cream, and a thin sauce will not hold the topping.
- Pale garlic onlyForty-five seconds in butter. Garlic that browns goes bitter, and there is nothing else in this dish strong enough to hide it.
- The C shapeA cooked shrimp curls into a loose C. A tight O means overcooked. It is a more reliable guide than the clock once the dish is in the oven.
Troubleshooting
| Problem | Cause | Fix |
|---|---|---|
| The shrimp are rubbery | Pre-cooked shrimp were used, or the dish was too deep. | Start with raw shrimp in a single layer in a shallow dish. |
| The sauce is thin and watery | The shrimp were not dried, or the cream was not reduced. | Pat them dry and simmer the cream 3 to 4 minutes before it goes in. |
| The topping is pale | Not enough time, or the dish sat too low in the oven. | Move it to the upper third, and finish under the broiler for a minute if needed — watching it constantly. |
| It tastes bitter | The garlic browned. | Cook it only until fragrant. If it colors, start that step again. |
Storage and reheating
This is best eaten the day it is made. Refrigerate leftovers up to 2 days and reheat to 165°F (74°C), the USDA safe temperature for leftovers.
Reheating cooks the shrimp a second time, so expect a firmer texture however carefully you do it. A moderate oven is better than a microwave. Do not freeze it — the cream splits and the shrimp turn woolly.
Garlic Shrimp Gratin
Shrimp baked briefly in a garlic cream under mozzarella and panko. The shrimp go in raw and cook in the oven, which is the only way they stay tender in a gratin.
- Seafood
- Main Dish
- Baking
Cook’s checkpoint
- Frying oil
- 350°F / 175°C
- Chicken, thickest part
- 165°F / 74°C
Use a food thermometer. Color and time alone don’t confirm poultry is done.
Ingredients
For the gratin
For the topping
Instructions
Notes
- The shrimp go in raw. Pre-cooked shrimp will be rubbery by the time the topping browns.
- A shallow dish matters — piled deep, the shrimp underneath overcook before the top colors.
Cooking Mode
Questions
- Fresh or frozen shrimp?
- Frozen is fine and often better quality. Thaw completely and dry thoroughly — thawed shrimp hold a surprising amount of water.
- What size shrimp should I use?
- Large, around 26 to 30 per pound. Smaller shrimp overcook before the topping browns; very large ones may still be underdone when it does.
- Can I prepare it ahead?
- Make the garlic cream up to a day ahead and refrigerate it. Assemble with the raw shrimp just before baking — sitting in cream, they begin to cure and change texture.
