Pi Mashed Potatoes. The world's best mashed potatoes that never end, recipe taken from http://www.epicurious.com/recipes/recipe_views/views/40042?id=40042. Ingredients. 3 kg potatoes 2 cup hot milk 4 tablespoons butter 5 pinches salt 1 g cheese Method. Put salt into mixing bowl. Combine hot milk into mixing bowl. Add salt into mixing bowl. Add hot milk into mixing bowl. Combine potatoes into mixing bowl. Add cheese into mixing bowl. Liquify contents of the mixing bowl. Pour contents of the mixing bowl into the baking dish. Clean mixing bowl. Put butter into mixing bowl. Combine salt into mixing bowl. Combine hot milk into mixing bowl. Add salt into mixing bowl. Add butter into mixing bowl. Liquify contents of the mixing bowl. Pour contents of the mixing bowl into the baking dish. Clean mixing bowl. Put potatoes into mixing bowl. Combine salt into mixing bowl. Combine potatoes into mixing bowl. Add cheese into mixing bowl. Liquify contents of the mixing bowl. Pour contents of the mixing bowl into the baking dish. Clean mixing bowl. Put potatoes into mixing bowl. Combine salt into mixing bowl. Combine butter into mixing bowl. Remove salt from mixing bowl. Remove butter from mixing bowl. Liquify contents of the mixing bowl. Pour contents of the mixing bowl into the baking dish. Serves 1.