Hot and sour shredded potatoes are also called vinegar shredded potatoes, and home-made shredded potatoes. Hot and sour potato shreds: Heat oil in the pan, add onion, ginger, garlic and dried chili until fragrant, add snail powder to stir fry, add potato shreds to stir fry quickly, add appropriate amount of white vinegar along the pan, turn off the fire, add appropriate amount of salt, chicken essence and oyster sauce, and stir until the pan is even at the remaining temperature.