This spread can be used as a dip or sandwiches and canapes. It was made popular at Louisville's Benedict's Restaurant earlier in this century for the Kentucky Derby.
Grate cucumber and drain in a fine mesh sieve. Combine cucumber, cream cheese, onion, salt, mayonnaise, sour cream and food coloring (if using) in a food processor.
Transfer to a bowl and add chopped dillweed. Taste for seasoning.
Serve with vegetable crudites as baby carrots, broccoli, cauliflower, celery, grape tomatoes, sugar snap peas; or white and blue con tortilla or pita bread chips.