Horseradish Mashed Potatoes

Modified from Epicurious.
Ingredients:
1 1/2 lb. russet potatoes (3 medium), peeled and cut into 1 inch pieces
2 tsp. kosher salt
1/4 c. heavy cream
3 Tbsp. unsalted butter
1/2 tsp. freshly ground black pepper
4 Tbsp. bottled horseradish

Put potatoes and kosher salt in a large heavy saucepan and generously cover with cold water. Bring to a boil then reduce heat and simmer, partially covered, until potatoes are tender, about 20 minutes. Drain well and return to saucepan.
Meanwhile, heat milk and butter in a small saucepan until butter is melted and milk is hot but not boiling. Add milk mixture, along with horseradish and pepper, to potatoes and mash with a potato masher or fork (to desired consistency). Season with salt and serve warm.
Makes 4 servings.