Ingredients

  • 2 lb cooked king crab legs in shell, thawed if frozen and shells split lengthwise
  • 1/2 stick (1/4 cup) unsalted butter
  • 2 tablespoons all-purpose flour
  • whole milk
  • 1 large garlic clove, lightly crushed
  • 2 large egg yolks
  • 1/3 cup medium-dry Sherry
  • 1/2 teaspoon dry mustard
  • 1/8 teaspoon freshly grated nutmeg
  • 1/8 teaspoon cayenne
  • 1/2 teaspoon salt
  • 2 tablespoons finely chopped fresh flat-leaf parsley
  • 1/4 cup fine dry bread crumbs
  • 1/4 cup finely grated Parmigiano-Reggiano (1/2 oz)

Method

  • Preheat oven to 450F.
  • Remove crabmeat from shell, discarding cartilage, and cut meat into 1/2-inch pieces.
  • Melt 2 tablespoons butter in a 1 1/2-quart heavy saucepan over moderately low heat, then add flour and cook, whisking, 2 minutes.
  • Add milk in a slow stream, whisking, then add garlic and bring to a boil, whisking.
  • Reduce heat and simmer, whisking, until bechamel is thickened, about 3 minutes.
  • Remove from heat and discard garlic.
  • Whisk together yolks, Sherry, mustard, nutmeg, cayenne, and salt in a bowl, then add hot bechamel in a slow stream, whisking.
  • Pour mixture into saucepan and cook over very low heat, whisking constantly, until an instant-read thermometer registers 160F, about 2 minutes.
  • Remove from heat and gently stir in crabmeat and parsley.
  • Divide mixture among 6 (4-ounce) ramekins.
  • Melt remaining 2 tablespoons butter and cool slightly.
  • Stir together melted butter, bread crumbs, and cheese with a fork, then sprinkle over crab.
  • Put ramekins in a shallow baking pan and bake in upper third of oven until crab is bubbling and crumbs are golden brown, about 5 minutes.