Ingredients

2 lbs potatoes

2/3 cup vinegar

2/3 cup water

1/4 cup sugar

1 tablespoon cornstarch

4 teaspoons salt

1/2 teaspoon ground black pepper

1 teaspoon powdered dry mustard

1 scallion, finely chopped

Preparation

Dice potatoes and cook in boiling water until tender. Set aside. In a large pan, cook vinegar, water, sugar cornstarch and mustard on high heat until it comes to a boil. Reduce to simmer and stir until thickened. Add potatoes, salt, pepper and scallions. Mix carefully to prevent mashing the potatoes.