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Cheddar Duchess Potatoes

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Cheddar Duchess Potatoes are a fancy yet easy twist on classic mashed potatoes. Made with creamy mashed potatoes, egg yolks, and sharp cheddar cheese, they’re piped into elegant swirls and baked until golden brown and crispy on the outside while staying fluffy inside. Perfect for holidays, dinner parties, or anytime you want an impressive side dish!

Ingredients

Scale
  • 2 ½ lbs Yukon Gold potatoes, peeled and cut into chunks
  • 1 tbsp kosher salt (for boiling)
  • 4 tbsp unsalted butter, softened
  • ½ cup heavy cream
  • ½ tsp black pepper
  • ¼ tsp ground nutmeg (optional)
  • 1 ¼ cups shredded sharp cheddar cheese
  • 3 large egg yolks
  • 1 tbsp melted butter (for brushing)
  • Fresh chopped chives (optional, for garnish)

Instructions

  1. Boil the Potatoes:

    • Place the potatoes in a large pot and cover with cold water. Add 1 tbsp salt.
    • Bring to a boil over medium-high heat and cook until fork-tender, about 15-20 minutes.
  2. Mash the Potatoes:

    • Drain the potatoes well and return them to the pot. Mash until smooth using a potato masher or ricer.
  3. Mix in Butter, Cream & Seasoning:

    • Stir in the softened butter, heavy cream, black pepper, and nutmeg (if using). Mix until smooth.
  4. Add Cheese & Egg Yolks:

    • Let the potatoes cool slightly, then mix in the shredded cheddar cheese and egg yolks. Stir until fully incorporated.
  5. Pipe the Potatoes:

    • Preheat oven to 425°F (220°C). Line a baking sheet with parchment paper.
    • Transfer the potato mixture to a piping bag fitted with a large star tip.
    • Pipe 3-inch swirls onto the prepared baking sheet.
  6. Chill & Bake:

    • Place the baking sheet in the fridge for 20 minutes to help the potatoes hold their shape.
    • Brush the tops with melted butter and bake for 15-20 minutes, until golden brown.
  7. Garnish & Serve:

    • Sprinkle with fresh chives if desired and serve warm!

 


Notes

  • For extra crispiness, bake for an additional 5 minutes.
  • You can make these ahead and refrigerate overnight before baking.
  • Swap cheddar for Gruyère or Parmesan for a different flavor.