3 lb large shrimp in shell |
3/4 cup ketchup |
1/4 teaspoon finely grated fresh orange zest |
1/4 cup fresh orange juice |
1 to 1 1/2 tablespoons fresh lemon juice |
3 tablespoons drained bottled horseradish |
1/4 teaspoon tabasco |
1/2 cup mayonnaise |
1/2 cup sour cream |
1/4 cup chopped scallion |
2 tablespoons chopped fresh chives |
2 tablespoons chopped fresh flat-leaf parsley |
2 teaspoons chopped fresh tarragon |
3 flat anchovy fillets or 1 tablespoon anchovy paste |
1 tablespoon fresh lemon juice |
1/4 teaspoon salt |
1/8 teaspoon black pepper |