Put a large pot of water on the stove and get it boiling.
Peel the potatoes.
Cut them into the same size pieces.
Drop potatoes into boiling water.
Watch the pot. When the water boils, put the lid back on with a space for steam to escape and set the timer for 30 minutes.
While potatoes are boiling, soften the cream cheese and butter in the microwave.
Put the softened cream cheese, butter and garlic salt to a large mixing bowl.
Mix together until well blended.
When the timer goes off, check the potatoes with a fork for tenderness.
Drain off all the water and pour the drained potatoes into the bowl with cream cheese and butter.
Mix everything together with a hand or stand mixer.