Make-Ahead Mashed Potatoes

I have been waiting almost a year to share my 2018 Thanksgiving recipes. 🙂

These mashed potatoes were so delicious, my son is planning to make them himself this year as his contribution to the feast. (…and to ensure that they make it back on the menu!) He has also requested scalloped potatoes. :/

This recipe was adapted from Bon Appétit, contributed by Chris Morocco. I prepared the potatoes in advance, earlier in the day, and kept them warm in a slow-cooker until the rest of the meal was ready to be served.

The beauty of this recipe is that the potatoes can be made up to TWO days before Thanksgiving. The finished dish can be gently reheated with just a little more dairy. The science behind this is that because the butterfat coats the potato starches, it prevents them from becoming sticky or gummy. If you are apprehensive to make this dish so far in advance, the potatoes can be prepared through step 6 (riced) and the remaining steps can be completed just prior to serving.

Yield: 8 servings

  • 4 lb. medium Yukon Gold potatoes, scrubbed
  • Kosher salt
  • 2/3 to 1 cup heavy cream
  • 2/3 to 1 cup whole milk
  • 1 1/4 cups (2½ sticks) unsalted butter, cut into pieces
  • 1/2 cup sour cream
  • freshly ground black pepper
  1. Place potatoes in a large pot and pour in cold water to cover by 1″.
  2. Add a large handful of salt (water should taste briny, like the ocean) and bring to a boil.
  3. Reduce heat and simmer until potatoes are very tender but not crumbly, 30–40 minutes.
  4. Drain and return potatoes to warm pot to dry (off heat).
  5. Meanwhile, heat 2/3 cup cream and 2/3 cup milk in a small saucepan over medium until just about to simmer. Reduce heat to low and keep warm until ready to add to potatoes.
  6. Pass hot potatoes and butter through ricer into a large bowl (this will help combine them quickly; most of the skins should stay behind but pick out any small pieces that get through if you want); season generously with salt.
  7. Mix with a potato masher until butter is melted and combined.
  8. Mixing constantly, gradually add warm cream mixture to potatoes, then mix in sour cream.
  9. Taste and season with salt and pepper as desired.

Do Ahead: Potatoes can be made 2 days ahead. Let cool; cover and chill. To serve, transfer potatoes to a pot and add 1/3 cup heavy cream and 1/3 cup whole milk; reheat over medium-low, stirring often to prevent scorching.

Duchess Baked Potatoes

Making a mashed potato dish in advance is beyond fabulous when preparing a holiday meal. This garlicky, fine-textured, “twice baked potato-esque” side dish was wonderful.

This recipe was adapted from Bon Appetit, contributed by Ann Redding and Matt Danzer. I increased the garlic and used a garlic press in lieu of grating the cloves. Great.

Yield: Serves 8

  • 4 pounds Yukon Gold potatoes
  • coarse salt
  • 5 large egg yolks
  • 3 garlic cloves, finely grated
  • 1¼ cups heavy cream
  • ¾ cup sour cream
  • 10 tablespoons unsalted butter, melted
  • 1 teaspoon pink or black peppercorns, finely ground
  1. Place potatoes in a large pot and pour in water to cover by 2″; season with salt.
  2. Bring to a boil over medium-high. Reduce heat and simmer until a paring knife very easily slides through potatoes, 25–35 minutes. Drain and let cool slightly.
  3. Preheat oven to 425°, preferably on convection.
  4. Whisk egg yolks, garlic, cream, sour cream, butter, and peppercorns in a large bowl; season generously with salt.
  5. Peel potatoes and pass flesh through a ricer or a food mill (or mash them by hand if you don’t mind a few lumps) directly into bowl with egg mixture.
  6. Fold in gently, being careful not to overmix.
  7. Transfer to a 3-quart baking dish and decoratively shingle or swirl surface.
  8. Bake, rotating once, until golden brown and slightly puffed, 30–40 minutes.

Note: Dish can be assembled 1 day ahead. Cover and chill. Increase bake time by 5–10 minutes.

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