1 pound lump blue crabmeat or Dungeness crabmeat, picked free of shells
1 large shallot, minced (about 3 tablespoons)
¼ cup extra-virgin olive oil
¼ cup fresh orange juice
3 heaping cups frisee or escarole, torn into bite-size pieces
4 small radishes, thinly sliced
Directions
Bring a saucepan of salted water to a boil and cook the shrimp until pink, about 2 minutes. Cut the shrimp into ½-inch pieces.
In a medium bowl, combine the mayonnaise with the mustard, horseradish, 6 tablespoons of the lemon juice, the chives, 1½ teaspoons of salt, the cayenne and white pepper.
In a large bowl, toss the crabmeat with the shrimp and shallot. Add the dressing to taste, reserving any extra for another use. Season the crab mixture to taste with salt.
In a medium bowl, whisk the remaining 3 tablespoons of lemon juice with the olive oil and orange juice. Add the greens and toss until combined.
Divide the crab mixture among 6 plates, using a ring mold to form it, if desired. Layer the radishes and lettuce on top and serve.