1 large English cucumber, peeled, sliced paper thin

1/2 tsp. salt

2 tsp. white vinegar

1 cup unsalted butter, softened

1/4 cup minced fresh tarragon

1/4 cup minced fresh chervil

30 thin slices whole-wheat bread, enough to make 72 (2x4inch) rectangles

Watercress leaves, optional

 

Put cucumber slices in large bowl. Toss with salt. Sprinkle with vinegar. Toss to mix well. Let stand 1 hour. Drain well in colander. Combine butter, tarragon and chervil. To assemble, spread butter over 1 side of each bread slice. Cover 15 slices with cucumbers, dividing evenly. Close sandwiches. Trim crusts. Cut into 36 rectangles. Arrange on platter, garnished with watercress leaves.