MASHED POTATOES WITH CRIMINI MUSHROOMS

Mashed Potatoes with Crimini Mushrooms image

Yield Makes 8 servings

Number Of Ingredients 6

5 pounds russet potatoes, peeled, cut into 1 1/2-inch cubes
8 tablespoons (1 stick) butter
2/3 cup (or more) whole milk
1 1/2 pounds crimini mushrooms, thinly sliced
1/2 cup chopped shallots
2 tablespoons chopped fresh chives

Steps:

Cook potatoes in large pot of boiling salted water until tender, about 25 minutes. Drain potatoes. Return to same pot. Stir over medium heat until excess moisture evaporates, about 1 minute; remove from heat. Add 5 tablespoons butter to potatoes; mash well. Add 2/3 cup milk and mix, adding more milk by tablespoonfuls to reach desired consistency. Season potatoes to taste with salt and pepper.
Melt 3 tablespoons butter in large skillet over medium-high heat. Add half of mushrooms; sauté until beginning to soften, about 3 minutes. Add remaining mushrooms and shallots. Sauté until juices evaporate and mushrooms brown, about 12 minutes; season with salt and pepper. (Potatoes and mushrooms can be prepared 2 hours ahead. Let stand separately at room temperature. Rewarm separately over medium heat before continuing.)
Mix 2/3 of mushrooms into potatoes. Mound in bowl. Top with remaining mushrooms; sprinkle with chives.