Main Courses

Halve and seed cucumber. Cut cucumber into sixteen 5-by
1/4-inch-thick sticks. Halve onion lengthwise and cut
crosswise into thin slices.

In a small bowl stir together sour cream, capers,
horseradish, and salt and pepper to taste.

Quarter lavash and spread 1 side of each quarter evenly
with 1 tablespoon sour cream mixture, leaving a 1/2-inch
border all around. On each quarter arrange about 1 1/2
slices salmon in one layer over sour cream mixture and
spread 1 tablespoon sour cream mixture evenly over salmon.
On each quarter arrange 4 cucumber sticks, about 3 onion
slices, 4 chives, and one fourth watercress parallel to 1
cut edge and season with salt and pepper. Tightly roll up
each lavash around filling into a cone and wrap
individually in wax paper and plastic wrap. Sandwiches may
be made 6 hours ahead and chilled, wrapped in plastic wrap.

Garnish sandwiches with watercress and chives.