Traditional Duchesse potatoes have been jazzed up with bits of roasted red peppers and a no-carb Parmesan cheese sauce, then they're formed into cakes and baked up until golden brown.
40ounces(2.5 pounds) russet or golden yellow potatoes
2ouncesunsalted butter
1egg yolkplus 1 whole egg (for egg wash)
2Tablespoonswater (for egg wash)
½teaspoonsalt (more to tasteif desired)
¼teaspoonwhite or black pepper
¼teaspoonnutmeg
½cuproasted red peppersdiced small
For the Parmesan Sauce
1liquid cup (8 ounces) heavy whipping cream
½teaspoonXanthan gum
¼cupfreshly shaved Parmesan cheese
⅛teaspoonsalt
⅛teaspoonwhite or black pepper
chopped fresh parsley for garnish
Instructions
Heat oven to 350 degrees F.
Line a sheet pan with parchment paper or a silicone baking mat; set aside.
Wash, peel, and cut potatoes into quarters. Add potatoes to a large pot, add enough cold water to cover them by 2 inches, then bring to a boil over high heat. Once potatoes are fork tender, drain water and return to the pot for a minute to absorb excess moisture.
Mash potatoes with a potato masher or in the bowl of a stand mixer using the paddle attachment to remove large lumps . Once potatoes are mashed, change to whip attachment If using a stand mixer, Add egg yolk, salt, pepper, and nutmeg and whip until creamy and smooth, but be careful not to over mix or your potatoes will become gummy and dry.
Add red peppers to the bowl and combine with your hands, forming mixture into patties approximately 3/4-inch thick and 2-3 inches in diameter.
Transfer to prepared baking sheet and brush with egg wash. Bake on top rack of oven about 15 minutes, or until golden brown. Use this time to prepare the Parmesan sauce.
Parmesan Sauce
Add butter to a medium sized saucepan. Melt over medium heat and whisk in Xanthan gum. Allow mixture to cook for 1 minute, then slowly whisk in the milk. (If you add it too quickly, it won't incorporate with the roux and your sauce will separate.) Add cheese, salt, and pepper, and stir until combined. Drizzle over baked potato cakes and garnish with chopped parsley.