lindysez note: if using fresh potatoes, russet potatoes work best; but you can use red or yukon gold. peel (no need to peel the red or yukon gold) and cube them, place them in a pot of cold water to cover; bring just to a boil, simmer 2 - 3 minutes then drain; run under cold water to stop the cooking process. you don'tsp want the potatoes overcooked, just al;dente. if using simply potatoes, or another refrigerated potato, you can process them as indicated in the recipe. if using frozen potatoes, thaw them before processing, either in the microwave, or if you've planned ahead, in the refrigerator.