Heat the oven
Heat oven to 425°F / 220°C and butter a shallow gratin dish.

Chicago’s sherry-garlic shrimp gratin: a buttery, crisp breadcrumb blanket over large shrimp baked just long enough for the topping and center to finish together.
Jump to RecipeAI-generated serving illustration. It is not a photograph of a tested batch or a doneness reference.
Heat oven to 425°F / 220°C and butter a shallow gratin dish.
Melt 1 tablespoon butter in a skillet and toast breadcrumbs until pale gold. Cool slightly.
Mix remaining softened butter with garlic, shallots, parsley, tarragon, paprika, cayenne, nutmeg, Parmesan, lemon zest and 2 tablespoons sherry. Season lightly.
Fold toasted breadcrumbs into the seasoned butter until moist and crumbly.
Pat shrimp dry, season lightly, toss with lemon juice and remaining sherry, and arrange in one snug layer.
Crumble the topping evenly over the shrimp. Bake 10 to 13 minutes, just until the centers are opaque and the butter is bubbling.
Broil 30 to 90 seconds only if the crumbs need more color. Rest 2 minutes and serve with bread and lemon.
OPTIONAL UPGRADE
Keep the core recipe clean, or flip this on for one or two high-impact upgrades.
Use these recipe-specific texture cues. Color and curl alone cannot establish safety; use a thermometer to check 145°F / 63°C at the thickest part for cooked shrimp.
The little details that make a big difference.
Shrimp does not benefit from extra bake time. Stop when the center is done.
Overlapping shrimp create wet spots and uneven doneness under the crumbs.
Pre-toasting gives you color without needing to overbake the shrimp.
Use a dry sherry; it balances the butter and garlic rather than reading sweet.