Freezing mashed potatoes

 10 lbs new white or yukon gold taters boiled. 2 blocks of philidelphia cream cheese (dont' use light..it doesn't work as well to bind), and about 1/2 tub or so of sour cream. Some butter if you like. Mash them up and freeze. I actually freeze them in muffin pans. I spray the pan with cooking oil, scoop in about 1/2 cup of mashed potatoes,. Freeze them then once frozen I vaccum seal them into either single or two per bag portions. Ready to eat and perfect portions.