At first, I attempted to make this dish as a way of recreating Chistmas Dinner the way Karen's mom, Lois, would have the meal. But now, this dish is a staple in our house for any major holidays. It would not be Thanksgiving without turkey and whipped poptatoes; or Chistmas, or...
The ingreditents below is the original receipe, but I have modified it to be for 5 pounds potatoes, it is 1 cup sour cream, 2 cups cottage cheese, 3/4 cup butter. That will nicely fill a large oblong baking dish.