Seasoned Steamed Eggplant

Name: Seasoned Steamed Eggplant
Ingredients: 2 eggplants (about 12 ounces/350 grams total), such as Japanese or Chinese varieties; 2 teaspoons white vinegar; 2 tablespoons light soy sauce; 1 1/2 teaspoons dark soy sauce; 1 teaspoon black vinegar; 1 tablespoon granulated sugar; 1 teaspoon sesame oil; 1/2 teaspoon ground white pepper; 1 teaspoon minced fresh ginger; 2 scallions, thinly sliced crosswise; 3 cloves garlic, minced; 2 tablespoons neutral cooking oil, such as canola or grapeseed oil; 2 teaspoons red chile oil (optional; store-bought or homemade); 1 1/2 teaspoons toasted white sesame seeds, store-bought or toasted at home; Cilantro leaves, for serving