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Recipe Detail

Make-Ahead Mashed Potato Casserole

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Number of Servings:

Ingredients:

  1. 3 pounds - small russet potatoes peeled, cut into 3-inch chunks
  2. 1 tablespoons - kosher salt
  3. 6 cloves - garlic peeled
  4. 1 - bay leaf
  5. 4 sprigs - thyme (3-inches each)
  6. 1 packages - 8 oz. cream cheese at room temperature
  7. 6 tablespoons - butter at room temperature
  8. 1 cups - sour cream (full fat)
  9. 3/4 cups - to 1 cup whole milk warmed
  10. 1 teaspoons - seasoned salt or to taste
  11. - freshly ground black pepper to taste
  12. 2 tablespoons - butter cut into bits and chilled

Directions:

Generously butter a shallow 2-1/2 quart gratin dish or baking dish.

Place potatoes in a large pot and cover with cold water to a depth of 2 inches. Add kosher salt, garlic, bay leaf, and thyme. Bring to a boil over high heat, then reduce heat, partially cover, and simmer until potatoes are tender, about 20 minutes. (Do not let potatoes break apart or become waterlogged).

Drain well and let stand until potatoes steam dry and edges look chalky, about 3 minutes. Discard bay leaf and thyme stems.

Press hot potatoes and garlic through a food mill or ricer into a large bowl (OR mash them as smooth as possible with a hand-held potato masher).

Add cream cheese, butter, sour cream, and 3/4 cup of milk to the warm potatoes; stir until smooth. The mixture will firm as it chills overnight, so at this point it should be slightly softer than you want to serve it. Season with seasoned salt and pepper.

Scrape potatoes into the prepared dish and smooth the top. Dot the top with the bits of chilled butter. Cover the dish tightly with a lid or plastic wrap and refrigerate overnight or up to 2 days ahead.

When ready to bake, preheat oven to 350 degree F. Remove plastic wrap or lid and bake until top is golden brown and potatoes are heated through, about 1 hour.


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