Boil washed potatoes with skin on in salted water until done, yet firm. Then cool. You can boil them the night before, then put in the fridge to combine later. Boil eggs by covering with water, bring to a boil for one minute, cover, turn off heat and let sit for 30 minutes. After 30 minutes cool down eggs more with cold water. Can boil the day before and put in the fridge to combine later.