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3 lb. Yukon Gold potatoes, peeled, cut into 2" pieces

1 lb. Red Skin potatoes, peeled, cut into 2" pieces

8 large garlic cloves, peeled - yes this is enough

1 Tbsp. plus 2 tsp. Diamond Crystal or 1¾ tsp. plus 1¼ tsp. Morton kosher salt, divided, plus more

1¼ cups whole milk

4 thyme sprigs

¾ cup (1½ sticks) plus 2 Tbsp. unsalted butter, divided

¾ tsp. freshly ground black pepper, plus more

½ cup sour cream

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1. Cover potatoes, peeled, cut into 2" pieces, garlic cloves, and kosher salt with cold water in a large pot. Water needs to be thoroughly salted. Bring to a low boil on the stovetop over high heat, then reduce heat and simmer (do not boil) until potatoes are very tender when pierced with the tip of a paring knife but not falling apart, 20–25 minutes.

2. *Meanwhile, heat 1¼ cups whole milk, 4 thyme sprigs, and ¾ cup (1½ sticks) unsalted butter in a small saucepan over medium, stirring, until butter is melted. Remove from heat; set aside.

3. Drain boiled potatoes and garlic; return to pot. Toss over low heat until moisture evaporates, 1–2 minutes. Using potato ricer or food mill, immediately press potatoes and garlic into a large bowl (do not let cool).

4. Discard thyme from warm milk mixture and gradually stir into hot potatoes, reserving about ½ cup if you plan to make in advance (see Do Ahead). Season with 2 tsp. Diamond Crystal or 1¼ tsp. Morton kosher salt and ¾ tsp. freshly ground black pepper.

5. Fold in ½ cup sour cream and stir with a spoon until incorporated and very smooth (do not overmix or potatoes will become gummy). Taste and adjust seasonings. Serve topped with remaining 2 Tbsp. unsalted butter and more pepper.

6. Do Ahead: Mashed potatoes can be made 2 hours ahead; cover and store at room temperature. Or chill, covered, up to 8 hours; reheat over medium with reserved ½ cup milk mixture, rewarmed to melt butter.

NOTE: As long as the potatoes are 80% peeled this will be plenty smooth. Also ok to skip infusing seasonings into milk. Not necessarily worth the work.

Thanksgiving 2023, Thanksgiving 2025