Easy Eggplant Stir-Fry
4 Japanese eggplants (about 700g)5 tablespoons peanut oil, divided2 tablespoons hoisin sauce2 tablespoons reduced-sodium soy sauce1 tablespoon plum sauce2 jalapeño peppers, cut into thin rings1 small yellow onion, sliced into 1/4-inch wedges2 teaspoons minced garlic1 teaspoon minced fresh ginger1 cup...