clear through the cucumber.) Toss the cucumbers with salt and set aside for thirty minutes to soften. Drain, rinse with cold water, then press gently between palms to remove excess water. Heat a wok or medium-size heavy skillet over moderate heat until hot enough to sizzle a bead of water slowly. Add corn or peanut oil, swirl to glaze bottom, then reduce heat to low. When hot enough to sizzle a ginger thread, add ginger, garlic, chili, and peppercorns. Toss until fully fragrant, about ten seconds, then add a pinch more chili if your nose tells you it's needed. Add cucumber, toss to combine, then add soy, vinegar, sugar, and sesame oil. Toss until sugar dissolves and liquid is hot. Taste and adjust with a bit more sugar if needed to bring out the full flavor of the chili. Scrape the mixture into a shallow bowl and set aside to cool, stirring occasionally. Before serving, remove most of the peppercorns.