Wash the cucumbers and chop off the edges. Peel the cucumbers and cut them in half length-way.
With a teaspoon, gently scoop out the seeds and discard them. Chop the cucumbers into thin slices and place into a mixing bowl. Add the cooking salt and leave to rest for at least 20 minutes.
Rinse the cucumbers and gently squeeze out excess water from them. Place into your serving bowl.
Wash and snip the chives with scissors over the cucumbers. Add the crème fraiche and season to taste with pepper. Mix thoroughly. Refrigerate until serving.