01 -
Peel and chop the potatoes into even pieces. Place them in a large pot, cover with cold water, add a pinch of salt, and boil over medium-high heat for 15 to 20 minutes until fork-tender.
02 -
Preheat the oven to 425°F and line a baking sheet with parchment paper.
03 -
Melt two tablespoons of unsalted butter in the microwave and warm the heavy cream in a separate bowl.
04 -
Drain the potatoes and return them to the pot placed over low heat for one minute to evaporate excess moisture. Mash until smooth.
05 -
Incorporate the melted butter, warm cream, grated Parmesan cheese, salt, black pepper, and egg yolks into the mashed potatoes. Mix thoroughly until smooth and uniform.
06 -
Transfer the mixture to a piping bag fitted with a star tip. Pipe small mounds onto the prepared baking sheet and brush the tops with the remaining butter.
07 -
Bake for 15 to 20 minutes until the duchess potatoes are golden brown and slightly crisp on top.
08 -
Garnish with freshly chopped chives or parsley and a light sprinkle of sea salt. Serve immediately.