- 3 1/2 pounds russet potatoes, peeled, cut into 2-inch pieces
- 1 cup crème fraîche or sour cream
- 1/4 cup (1/2 stick) butter, room temperature
- 3 tablespoons (packed) finely chopped fresh dill
- 1 4-ounce jar salmon caviar
- Cook potatoes in large pot of boiling salted water until very tender, about 25 minutes. Drain well. Return potatoes to pot; mash over low heat until almost smooth. Add crème fraîche and butter; whisk until smooth and fluffy. Stir in dill. Season with salt and pepper. (Potatoes can be made 2 hours ahead. Cover and let stand at room temperature. Rewarm over low heat, stirring frequently.)
- Top potatoes with caviar and serve.