Hard boil the egg in boiling water for 10 minutes, quench, let cool and peel.
Quarter the cucumber lengthways, remove the seeds and cut into pieces 1/2 cm wide. Cut the egg into slices. Roughly crumble the pumpernickel. Layer the cucumber with herbal quark, pumpernickel and egg slices in a sealable glass and sprinkle with a little salt and pepper. Also looks good on a brunch buffet.