Cut potatoes into 7mm cubes, soak in water, drain, and microwave for 1 minute at 600W. Let cool.

Finely chop the onion.

Mix ground pork with salt in a bowl. Add egg, onion, breadcrumbs, and pepper, then knead thoroughly.

Add potatoes to the mixture, divide into 8 portions, shape into patties, and create a small indentation in the center.

Heat salad oil in a frying pan over medium heat. Place patties in the pan, cover, and cook on medium-low heat for 3 minutes. Flip and cook on low heat for 5 minutes. Remove when fully cooked.

Wipe the pan clean and add sauce ingredients. Heat and stir over medium heat until thickened.