Start by peeling and then thinly slicing your cucumber.
Spread pieces of cucumber in a single layer on paper towels.
Generously sprinkle salt over the cucumbers. This draws the water out of the cucumbers so that your sandwiches don't become soggy. Allow to rest for at least ½ hour.
Meanwhile, rinse and pat mint leaves dry. Chiffonade your mint leaves and set aside.
When cucumbers are done, pat dry.
Butter 1 side of all 8 pieces of bread. This helps prevents moisture from reaching the bread.
Then spread a thin layer of whipped cream cheese on each side of bread.
Taking one piece of bread, sprinkle a few mint leaves on to the cream cheese.
Layer cucumber slices. 2-3 deep.
Top with a few more mint leaves and another slice of bread.
With a sharp knife cut off crusts, and cut into in half twice to make 4 triangles.
Serve chilled!
Notes
To store, place in a container with paper towel in between each layer. Keep refrigerated. Sandwiches can be made ahead of time and stored for hours.