How to Make Roasted Three Delicacies?

Ingredients:
Potatoes one large, bell peppers two,eggplant one
Method:
Peel the potatoes, wash and cut into dice. Remove the stems from the bell peppers, remove the seeds, then cut into triangular pieces. Peel and wash the eggplant, then cut into 3-cm diamond-shaped pieces.
Chop the spring onion,ginger, and garlic.Light soy sauce, salt, sugar,chicken essence, cornstarch slurry,dashi (kombu broth) mixed together evenly.
Heat oil in a wok to six when the potatoes are fried until golden yellow. Coat the eggplant with some starch before frying until golden yellow. Quickly fry the bell peppers.
Leave a little bottom oil in the wok, add all ingredients, pour in the sauce and stir-fry. Add more oil for finishing.