Cold Peanut Noodle Salad

Name: Cold Peanut Noodle Salad
Ingredients: ½ English cucumber (thinly sliced); 2 Tablespoons rice vinegar; 1 Tablespoon sugar; 1 teaspoon sesame oil; 1 cloves garlic (grated or minced); 1 teaspoon kosher salt; 3 7.27 oz. packages udon noodles; ½ cup peanut butter; 2 cloves garlic (grated or minced); ⅓ cup low sodium soy sauce; ¼ cup rice wine vinegar; 1 Tablespoon sesame oil; 1 Tablespoon honey; 2 teaspoons hot chili oil (plus additional for serving); 3 Tablespoons vegetable oil; ¼ cup water; 2 cups shredded red cabbage; 4 scallions (thinly sliced); Salt and pepper (to taste); Black sesame seeds (to garnish)