Once the pieces of jicama turn from opaque white to more translucent, add the filling seasonings: soy sauce, oyster sauce, sugar, salt, white pepper, sesame oil, and scallion greens. Mix well, taste, and adjust to your preference. Remove off heat and set aside.
1/2 tbsp soy sauce, 1/2 tbsp oyster sauce, 1/2 tsp sugar, 1/4 tsp salt, 1/8 tsp white pepper, 1/2 tbsp sesame oil, 3 stalks scallions