4 medium cucumbers (each approx. 8 inches long or use English cucumber)
Instructions
Remove 2 tablespoons crab meat for garnish, if desired.
Place the remaining crab, cream cheese, mayonnaise, mustard, shallots, horseradish, cayenne pepper and salt (if using salt) in a food processor bowl; cover and process until smooth, scraping sides of bowl.
Spoon mixture into a pastry bag fitted with a large star tip.
Using a zester or vegetable peeler, peel the cucumbers, leaving some strips of skin.
Cut into 3/4 inch thick slices (or halve 2 cucumbers lengthwise and slice 3/4 inch thick).
With a melon baller, scoop out the center of each slice to create a cup.