Wash the cucumber, pat dry with kitchen paper, peel with the garnish peeler, cut in half lengthways, scrape out the seeds with a small spoon and cut into small crescents with the knife. Mix a salad dressing with crème fraîche (1 tbsp), Greek cucumber salad (1 tbsp), cream horseradish from the jar (1 teaspoon), light rice vinegar (1 teaspoon), sugar (1 teaspoon) and lemon juice (1 teaspoon). Then carefully mix the salad dressing with the small cucumber moons.