This cheesy and decadent steakhouse dish features chilled shredded russet potatoes mixed with sour cream and sharp white cheddar for the ultimate holiday side.
2 pounds russet potatoes (3 large or 4 medium)
1 large shallot (about 2 ounces)
2 cloves garlic
1 tablespoon unsalted butter
10 ounces sharp white cheddar cheese
1 1/2 cups sour cream
2 teaspoons kosher salt
1/4 teaspoon freshly ground black pepper
1. Preheat oven to 425 Fahrenheit. Wrap pierced potatoes in foil and bake for 1 hour until tender.
2. Cool potatoes to room temperature, then refrigerate for at least 8 hours or overnight.
3. Preheat oven again to 425 Fahrenheit. Sauté chopped shallot and garlic in butter until soft.
4. Grate chilled potatoes (with skins) into a large bowl.
5. Add 1.5 cups cheese, sour cream, salt, pepper, and the sautéed aromatics. Stir gently.
6. Transfer to a 2-quart baking dish and top with remaining 1 cup of cheese.
7. Bake for 30 minutes until bubbling and golden brown. Let cool 15 minutes before serving.
Do not skip the overnight chilling step; it is vital for the texture.
Use a block of sharp white cheddar and grate it yourself for the best melt.
Leftovers stay fresh in the fridge for up to 5 days.