How to Make It
Peel potatoes, and cut into 1-inch pieces. Bring cold water, potatoes, and 1 tsp. salt to a boil in a medium-size Dutch oven over medium-high heat. Reduce heat to medium-low. Cook potatoes for 15 to 20 minutes or until fork-tender and drain.
Bring potatoes back to Dutch oven. Cook in Dutch oven until water evaporates and potatoes look dry. Mound potatoes on 1 side; add butter, half-and-half, cream cheese, ground pepper, and remaining 1 tsp. salt to opposite side of Dutch oven. Cook 1 to 2 minutes or until butter is melted and mixture boils.
After removing from heat, beat at medium speed with a hand-held electric mixer 30 seconds to 1 minute or to desired degree of smoothness. Do not overbeat. Serve warm.