Found this in my aunt’s recipe box from 1958. She served these at every bridge club meeting.

reheat until steaming hot before serving again. Use caution when slicing potatoes with a mandoline—always use the guard—and be careful when removing the muffin tin from the oven, as the cream and cheese will be very hot and can bubble over.

Finally, if you grease the muffin tin well and let the cups rest before unmolding, they’ll release more easily and keep their shape on the platter.