1 cup (7½ ounces / 200 g) crab meat
1 cup mayonnaise
½ cup sour cream
1 teaspoon lemon juice
3 teaspoons dry sherry
Salt to taste
Freshly-ground pepper to taste
Drain, rinse, and pick over crab meat to remove any bits of shell and cartilage.
Combine all ingredients, blending well.
Refrigerate until ready to serve.