Place the potatoes in a pot with cold water. Bring the water to a boil. Reduce heat and simmer for 10-15 minutes or until the potatoes can be easily pierced with a toothpick.
Strain the potatoes and place in a bowl. Lightly mash and season with salt and pepper. Allow the potatoes to cool.
Mix in the carrot, cucumber, eggs, and scallions.
Mix the vinegar, mayo and shichimi togarashi in, tasting and seasoning until it’s delicious.