Cut the potatoes into bite-sized pieces and rinse them in water. Slice the onion into appropriate sizes.

Heat oil in a pan and add minced garlic to make garlic oil. Use low heat to avoid burning.

Once the garlic aroma rises, add the potatoes and onions to the pan and stir-fry.

Add 1 tbsp oyster sauce, 3 tbsp soy sauce, and 1 tbsp sugar to the pan and continue stir-frying.

Cover the pan with a lid and cook on low heat until the potatoes are tender. No need to add water.

When the potatoes are almost cooked, add 1 tbsp corn syrup and simmer for a bit longer.