Heat your pan on medium high heat, add oils.
Saute ginger and garlic until fragrant.
Add pork cubes and cook for 2 minutes.
Then add potatoes and carrot.
Saute together for a minute.
Add light soy sauce, dark soy sauce, rock sugar and toss to coat.
Pour in water and bring to boil.
Lower heat to low, cover, and allow to simmer for 25 minutes or until potatoes are soft and pork tender.
Thicken gravy with cornstarch slurry.