Make Ahead Mashed Potatoes

Mashed potatoes made with this recipe stay soft, so it works well for bring-a-dish or potluck gatherings, or for making them ahead of time if you are hosting a meal.

5 # potatoes, peeled
6 ounces cream cheese
1 cup sour cream
2 Tablespoons butter
¾ teaspoon salt

Cook, drain, and mash potatoes.  Add rest of ingredients to mashed potatoes, mix well, and put into greased casserole dish or 9 x 13 cake pan. At this point potatoes can be covered and refrigerated for up to one week, or put in the freezer for up to 3 weeks, or baked at 350 degrees for 30 minutes if serving right away.