Potatoes Romanoff in a baking dish with spoon

Potatoes Romanoff

  • Author: Dan
  • Prep Time: 1 hour
  • Refrigerating the potatoes: 8 hours
  • Cook Time: 25 minutes
  • Total Time: 9 hours 25 minutes
  • Yield: 6 Servings 1x

Potatoes Romanoff are a super fluffy, cheesy potato side dish! We make this potato casserole for our steak dinners at home, or for a make ahead side dish on the holidays!



  • 2 pounds russet potatoes, scrubbed, skin on
  • 1 teaspoon kosher salt
  • 1 teaspoon fresh black pepper
  • 1 teaspoon garlic powder
  • 2 teaspoons dried, minced onions
  • 1 1/2 cups shredded white cheddar cheese, divided
  • 1/4 cup grated parmesan cheese, plus more for garnish
  • 1 cup sour cream
  • 3 tablespoons butter, melted
  • 2 tablespoons chives, plus more for garnish


  1. Preheat the oven to 400 degrees. Scrub the potatoes, leaving the skin on and then pierce each potato several times with a fork. Place the potatoes on a baking sheet and then bake for 1 hour until the potato is tender. If the potatoes are large and not quite done, add another 15-20 minutes to the cooking time.
  2. Remove the potatoes from the oven, remove the foil and let cool to room temperature. Wrap the potatoes in plastic wrap and then refrigerate at least 8 hours or overnight.
  3. Preheat the oven to 350 degrees. Remove the plastic wrap from the potatoes and grate on a box grater (the large holes). Do not peel the potatoes, grate with the skin on! Add the grated potatoes to a large bowl.
  4. Add the salt, pepper, garlic powder, minced onions, 1 cup of the cheese, the parmesan cheese, sour cream, melted butter and chives to the bowl with the potatoes. Using a large spoon, gently toss the potatoes to combine the ingredients without mashing the texture of the potatoes.
  5. Transfer the potatoes to a 2 quart, buttered baking dish and top with the remaining 1/2 cup of cheddar cheese.
  6. Bake for 25 minutes or until the potatoes are warmed through. Serve with more chives and parmesan cheese for garnish.
  • Category: Side Dish
  • Method: Oven
  • Cuisine: American