Ingredients
4 tablespoons unsalted butter , cut into 4 pieces
2 tablespoons heavy cream
1/2 teaspoon table salt
1 teaspoon granulated sugar
2 pounds sweet potatoes (about 2 large or 3 medium-small potatoes), peeled, quartered lengthwise, and cut crosswise into 1/4-inch-thick slices
pinch ground black pepper
Preparation
Combine butter, cream, salt, sugar, and sweet potatoes in 3 to 4 quart saucepan; cook, covered, over low heat, stirring occasionally, until potatoes fall apart when poked with fork, 35 to 45 minutes.
Off heat, mash sweet potatoes in saucepan with potato masher, or transfer mixture to hopper of food mill and process into warmed serving bowl. Stir in pepper; serve immediately.
