Meanwhile, we will make the sauce. Heat the oil in a large frying pan/wok on medium heat. Sauté garlic and ginger until fragrant, about 3-4 minutes. Lower heat to a medium-low, add the rest of the sauce ingredients. Mix well and stir into a homogenous looking sauce. Cook for 3 minutes. Turn off the heat but there is no need to remove pan/wok from heat sauce to keep the sauce warm.