Ingredients

  • 2 1/2 cups bottled clam juice
  • 1 1/2 cups dry white wine
  • 12 littleneck clams, scrubbed
  • 12 mussels, scrubbed, debearded
  • 3/4 pound uncooked large shrimp, peeled, deveined, shells reserved
  • 1/4 cup (1/2 stick) butter
  • 1 cup finely chopped leek (white and pale green parts only)
  • 1 medium potato, peeled, cut into 1/2-inch pieces
  • 1 cup chopped peeled celery root
  • 1/3 cup Calvados
  • 3/4 pound bay scallops
  • 1/2 cup creme fraiche
  • 3 large egg yolks
  • 2 teaspoons fresh lemon juice
  • 1/4 cup chopped fresh Italian parsley

Method

  • Bring clam juice and wine to simmer in heavy large pot.
  • Add clams, then mussels to pot.
  • Cover; cook until shellfish begin to open, about 2 minutes for mussels and about 8 minutes for clams.
  • Using slotted spoon, transfer shellfish to large bowl as they open.
  • Discard any that do not open after 12 minutes.
  • Reserve liquid in pot.
  • Add shrimp shells to cooking liquid.
  • Cover and simmer over low heat 10 minutes, stirring occasionally.
  • Strain liquid into 4-cup glass measuring cup.
  • Discard solids.
  • Melt butter in clean large pot over low heat.
  • Add leek.
  • Cover; cook until leek is tender, stirring occasionally, about 10 minutes.
  • Add potato and celery root.
  • Pour in reserved cooking liquid, leaving any sediment in measuring cup.
  • Add Calvados.
  • Bring to simmer.
  • Cover and simmer until potato is almost tender, stirring occasionally, about 5 minutes.
  • Stir in shrimp and scallops.
  • Cover; simmer 2 minutes.
  • Whisk creme fraiche, egg yolks and lemon juice in small bowl to blend.
  • Stir into stew.
  • Return clams and mussels to pot.
  • Cover and cook without boiling until shrimp and scallops are just cooked through, stirring occasionally, about 5 minutes.
  • Season with salt and pepper.
  • Divide among bowls.
  • Sprinkle parsley over.