Wash the potatoes thoroughly, peel them, and cut into thin strips.
Cut the onion, carrot, and green onion into thin strips.
Heat cooking oil in a pan, then stir-fry the potatoes, onion, and carrot over medium heat.
When the potatoes turn translucent, add gochujang, soy sauce, sugar, minced garlic, and sesame oil, then stir-fry.
Add the green onion and stir-fry once more to finish.