Boil 2 eggs for 7 minutes to make hard boiled eggs
Boil hot water for potatoes
Peel and chop 3 potatoes
Put the 3 chopped potatoes into the boiling water and boil for 10 minutes
Cut a cucumber in half
Thinly slice the half cucumber and add 1/4 tsp of salt
Mix the salt and the sliced cucumbers
Let the salt and sliced cucumbers sit for 10 minutes
Slice 100 grams of ham into pieces of about 1 cm
Prepare ice water for the boiled eggs
Put the boiled eggs into the ice water (this isn't necessary, but makes it easier to peel the eggs)
Check the potatoes' hardness. If softened, and mash the potatoes in a mixing bowl with 1 tbsp of butter.
Drain the water out of the cucumbers by hand pressing them. Add the hand-pressed cucumbers to the potato mixing bowl.
Add the ham and boiled eggs to the mixing bowl. Add 1 tsp of dashi, 5 tbsp of mayonaaise, and 1/4 tsp of salt to the mixing bowl. Add black pepper for taste if desired.
Mix all the ingredients in the bowl. You can add additional salt for flavor if desired.
Serve and enjoy!