Cut fish cake, onion, carrot, and green onion into bite-sized pieces.
Heat cooking oil in a pan and stir-fry the onion and carrot.
Add the fish cake and continue stir-frying together.
Add gochujang (Korean chili paste), soy sauce, chili powder, oligosaccharide syrup, minced garlic, and pepper for seasoning.
Pour in 40ml of water and stir-fry until the sauce is well absorbed.
Add green onion and sesame oil, mix well, and finish.