Wash and dry the potatoes. Chop them into 1-inch pieces, keeping the chunks roughly the same size even if they aren't the exact same shape. Put the potatoes in a medium pot, cover with cold water, and bring to a boil. Season the water with 2 teaspoons of salt. Once the water begins to boil, cook the potatoes for 3 to 4 minutes, until you can stick a fork into them without too much resistance. You want the potatoes to be almost, but not fully, cooked through so they won't fall apart during the next steps.