Cucumber kimchi (Oi kimchi)

Name: Cucumber kimchi (Oi kimchi)
Cuisine: Asian, Korean
Ingredients: 3 Korean cucumbers or 5 – 6 Kirby pickling cucumbers (about 1.5 pounds); 1 tablespoon coarse sea salt (less if using table salt); 2 to 3 ounces garlic chives buchu (부추); 1/4 medium onion; 2 to 3 tablespoons Korean red chili pepper flakes gochugaru (고추가루); 1 tablespoon salted shrimp saeujeot (새우젓); 1 tablespoon or fish sauce (myulchi aekjeot (멸치액젓)); 2 teaspoons minced garlic; 1/2 teaspoon grated ginger; 1 tablespoon sugar; 1 teaspoon roasted sesame seeds