Peel potatoes. Place the peeled potatoes in a bowl of cold water to prevent them from oxidizing and browning.

Place the pork in a bowl of cold water. Scrape the surface of the skin to remove debris and hair.

Heat a wok on high. Add oil.

Add more oil and the pork. Let the pork cook undisturbed for 30-40 seconds so that the pieces can brown; then flip and brown the other side for 30-40 seconds.

Turn the heat to the lowest setting, or turn it off completely. Add ground bean sauce, oyster sauce, and light soy sauce. Briefly stir to distribute everything.

Add enough boiling water to almost fully cover all the ingredients.

Peel potatoes and cut them into bite-sized triangular chunks.

Trim off the ends of the carrots, peel and rinse them, then cut into triangular chunks.

Cut the red onion into bite-sized pieces.

Peel the garlic, then cut into thirds.

Cut the green parts of the green onions into 2-inch long batons.

Remove the pork from the bowl and pat it dry with paper towels. Cut the pork into bite-sized pieces.

Add oil and stir-fry the red onion until fragrant, then transfer to a bowl.

Add more oil and stir-fry the potatoes until fragrant, then transfer to a bowl.

Add more oil and the pork. Let the pork cook undisturbed for 30-40 seconds, then flip and brown the other side.

Add the garlic and stir-fry it together for about 20 seconds.

Turn the heat to the lowest setting. Add ground bean sauce, oyster sauce, and light soy sauce. Briefly stir to distribute everything.

Bring the heat back up to medium. Add sugar and stir it in to distribute.

Add the potatoes and carrots to the wok. Stir for 30 seconds to mix everything up.

Add enough boiling water to almost fully cover all the ingredients.

Cover the wok with the lid and cook for 5 minutes on medium-high heat.

Uncover the wok and adjust the seasoning to your liking.

Cover the wok again and cook on medium heat until the potatoes have cooked through and are tender.

Add the red onions, green onions, and sesame oil. Give everything a good stir to distribute.

Transfer the braised pork and potatoes to a serving dish.