2. Peel the potatoes and dig the ball with a small round spoon.
3: Wash the starch in clean water, and take it out and drain it.
4: Add oil to the pot and heat it. Add onion and garlic and stir-fry until fragrant.
5: Add potato balls and stir fry, and pour a little water while frying to prevent the pot from being burnt.
6. Stir fry until it stops, add salt, Korean hot sauce and rice vinegar, stir fry evenly, then take out the pan and sprinkle with a little chopped green onion.