– 1 pound large shrimp, peeled, tails removed, and deveined – 1 + 1 tablespoons dark soy sauce, divided – 1 + 1 + 1 tablespoons sesame oil, divided – 1 + 2 cloves garlic, minced and divided – 2 pounds frozen, pre-cooked udon noodle – 2 large Chinese eggplant – 1 tablespoon kosher salt – ¼ cup black soy sauce – ¼ cup oyster sauce – 1 tablespoon rice vinegar – 1 tablespoon dark brown sugar – 1 tablespoon corn starch – 1 + 2 + 1 tablespoons neutral frying oil (avocado, peanut), divided – 12 ounces king oyster or white button mushrooms, sliced – 4 fresh Thai chiles, stems trimmed – 2 large scallions, stems removed and thinly sliced – ¼ cup thinly sliced fresh Thai basil leaves, plus more for garnish – 2 tablespoons thinly sliced fresh mint leaves, plus more for garnish