Bring a saucepan to with water and 1 tsp of salt to a boil.
While waiting for the water to boil, cut the potatoes into ¾ inch chunks.
Once the water in boiling, add the potatoes and boil until you are able to easily pierce them with a fork.***
Thoroughly drain the potatoes in a strainer, ensuring most of the water is remove, then place them directly in the kitchen aid mixing bowl.
Directly add the butter, cream cheese, milk, salt, pepper and optional chives into the mixing bowl with the boiled potatoes.
Using the kitchenaid Flat Blade Paddle (you may also use the one with the scrapper), begin mixing the potatoes on medium speed for approx 1 minute, until they are fluffy and smooth.
Scoop them directly out of the mixer bowl and serve!