Cheesy Crab Au Gratin (Printable)
Creamy baked crab with Gruyère, cheddar, and a golden panko crust for an elegant seafood indulgence.
# What You'll Need:
→ Seafood & Dairy
01 - 1 lb jumbo lump crab meat, picked over for shells
02 - 1 1/2 cups shredded Gruyère cheese
03 - 1 cup shredded sharp cheddar cheese
04 - 1/2 cup heavy cream
05 - 1/2 cup whole milk
06 - 2 tbsp unsalted butter
07 - 1/4 cup cream cheese, softened
→ Vegetables & Aromatics
08 - 1 small shallot, finely chopped
09 - 2 cloves garlic, minced
→ Seasonings
10 - 1 tsp Dijon mustard
11 - 1/2 tsp cayenne pepper
12 - 1/2 tsp paprika
13 - 1/4 tsp freshly ground black pepper
14 - 1/2 tsp sea salt, or to taste
15 - 1 tbsp fresh parsley, chopped, plus extra for garnish
16 - 1 tbsp fresh chives, chopped
→ Topping
17 - 1 cup panko breadcrumbs
18 - 2 tbsp unsalted butter, melted
19 - 1/4 cup grated Parmesan cheese
# Directions:
01 - Preheat the oven to 400°F. Lightly butter a medium gratin or baking dish and set aside.
02 - In a medium saucepan over medium heat, melt 2 tablespoons of butter. Add the finely chopped shallot and minced garlic, sautéing for 2 to 3 minutes until softened and fragrant.
03 - Pour in the heavy cream, whole milk, softened cream cheese, and Dijon mustard. Cook while stirring continuously until the cream cheese has fully melted and the mixture is smooth.
04 - Reduce the heat to low. Gradually add the shredded Gruyère and sharp cheddar cheese, stirring until completely melted and incorporated. Season with paprika, cayenne pepper, sea salt, and black pepper.
05 - Gently fold in the jumbo lump crab meat along with the chopped parsley and chives, taking care not to break apart the crab lumps. Remove the saucepan from heat.
06 - Spoon the crab mixture evenly into the prepared gratin dish, spreading it into an even layer.
07 - In a small bowl, combine the panko breadcrumbs, melted butter, and grated Parmesan cheese. Sprinkle the mixture evenly over the surface of the crab filling.
08 - Bake on the center rack for 20 to 25 minutes, until the filling is hot and bubbly and the topping is a deep golden brown.
09 - Remove from the oven and let rest for 5 minutes before serving. Garnish with additional fresh parsley and chives if desired.
# Expert Tips:
01 -
- The cheese sauce clings to every fold of crab without drowning it, so each bite feels luxurious but balanced.
- That golden panko crust cracks under your spoon and gives way to something impossibly creamy underneath.
- It looks like you spent hours on it, but most of the magic happens in one saucepan on the stove.
02 -
- If your sauce gets too thick before adding the crab, splash in a tablespoon of milk because it will tighten further in the oven.
- Resist the urge to stir the crab aggressively, since broken lumps turn elegant gratin into something closer to a cheese dip.
- Check the crab meat for shells twice, running your fingers through it gently under good light, because nothing ruins a bite faster than crunching into cartilage.
03 -
- Dry the crab meat on paper towels before folding it in, because excess moisture makes the sauce watery and dilutes every flavor you just built.
- Broil for the last 60 seconds if you want an extra bronzed top, but stand by the oven because panko goes from perfect to charcoal in seconds.