Prepare Persian cucumber slices and shallot slices by soaking them in salted water for a few minutes. Drain and squeeze hard to remove the excess water. Set them aside.
In a large mixing bowl, add mashed potato, cucumber slices, shallot slices, imitation crab meat, and seasoning with Japanese mayonnaise, condensed milk, 1 teaspoon of salt, and ground black pepper. Mix well with a spatula.
Easy and quick Japanese Potato Salad recipe brings you an ultimate side to the table in less than 30 minutes. It's creamy, flavorful, and very comforting.