Boil potatoes until easily pierced with a fork
Strain and let cool
Whisk the Mayo, aminos, vinegar, and oil in a small bowl
Using a fork or potato masher, roughly mash the cooled potatoes
Add the Mayo mixture to potatoes and mix well
Taste and adjust as needed (ex, a dash more of aminos, an extra tsp of Mayo)
Salt and pepper to taste
Top with toasted sesame seeds, chopped green onion, furikake, etc