In a medium mixing bowl, combine cream cheese, whipping cream, salt, and pepper. Beat at medium-high speed with a mixer until blended. Add dill, chives, and parsley, stirring well.
Using a mandoline or a chef’s knife, cut 40 very thin slices from cucumber.
Spread a layer of cream cheese mixture onto bread slices. On 5 bread slices, arrange 8 overlapping cucumber slices on top of cream cheese layer. Top with remaining 5 bread slices, cream cheese side down, to make 5 sandwiches.
Using a serrated bread knife in a gentle sawing motion, trim and discard crusts from sandwiches. Cut each sandwich diagonally into 4 equal triangles.
Serve immediately, or cover with damp paper towels, place in a covered container, and refrigerate until serving time.
Notes
To create 4 equal triangles, be sure to start with perfectly square bread slices.
Recipe by TeaTime Magazine at https://teatimemagazine.com/herbed-cucumber-cheese-sandwiches/