Preheat the oven to 350 degrees F.
Prick the potatoes with the tines of a fork and place in a baking dish. Roast until the potatoes are tender, about 45 minutes. Remove from the oven. When cool enough to handle, peel off the skin and place the flesh in a bowl. Mash with a hand masher. Add enough chicken broth to achieve desired consistency. Season with salt and pepper. Be careful adding salt as many chicken broths contain lots of salt already.
Recipe courtesy of Kathleen Daelemans